I read Verneer's thread on CR today titled "Why can't most people beat $200NL and under?". The biggest reasons discussed were bankroll management, moving up, money, and discipline. I have the first few nailed, but discipline is tough. It covers such a wide area, but I can definately say that the biggest killer to my winrate is bad sessions. Sessions where I'm playing my B, C or even Z game for whatever reason. Tonight I think I played my B/C game, anyways here's the story.
Before playing tonight I'd put in 1.5k hands for the month at a high winrate, which is standard when I start 10k bursts. Tonight I played a pretty sick 600 hands, here's what happened...

A quick commentary, I ran pretty bad for the first 400 hands think I was playing ok. Then I
stacked a loose swede with a set turned quads at the hand 410 mark and started running better up to hand 500. Was pretty happy I managed to pull it back from a tough session and about to logout but decided to make it 600 hands lol...
So the interesting this is, I'm 6-7 tabling and all 3 of those big loss hands were against 1 player on 1 table! Here's how it went down...
He's only been at the table for 12 hands, I've got him as 50/15/0
Pretty big AQ laydownFlop I don't mind seeing him call, as he'll often have some PPs/weaker aces. On the turn he minraises me, this is such a standard flopped set line at $100nl, AK is possible too but it feels like a set. There's no way he has a middle pair now, and weaker aces are really unlikely. So I think I read his pattern well here and folded to the better hand. HOWEVER, I didn't notice I had a NFD, so getting $55 to call into would would be a $225ish pot I probably have odds against his range to ship it here. But it's not a huge mistake, not too worried about that hand...
Re-shoving 99 on a 4-high boardI think this is a borderline 3-bet, but I don't hate it. I'm trying to 3-bet 99/TT more now and this seems like a good spot. By now I'm only got 20 hands on the guy and he's still running 50/15/0.5 so maybe I should just flat call here. Meh, don't hate the 3-bet, might be a small mistake, nothing huge.
UTG is a loose passive fish. I decide to lead, and fold to a raise from UTG, and see what villain does. I made my bet size a good amount to be able to comfortably get away from the hand. UTG folds as expected, and villain minraises me. Without the previous hand this is a standard fold for me every time. However I start thinking that he might be putting a play on me, and maybe he didn't have it in the last hand either. I convinced myself that I should stand up at this point based on only the previous AQ hand! I shove, he has the OP as expected, I lose a stack.
At this point I uncheck auto post on all tables, lol...
Another huge AQ handPreflop is standard, I get called in 3 spots because my image is really loose. At this point I love my hand, I've got TPTK and the NFD, huge hand. Villain UTG (now about 60/15/0.4) just donk-shoves the flop! LOL, here's me with the top pair and the NFD champin' to call. :) I run through his range in my head and at the time I put him on most likely a set or a pair and flush draw (AxTc/KxJc, etc). I think I was blinded by just wanting to call with the strength of my hand and my desire to stack him here, I just didn't assess the situation correctly.
If I had looked at it correctly I'd have seen that the only set he could have is with 55, and he probably wouldn't ship with the combo draws. Actually like 80% of his range was a little flush, so my hand was a pretty easy fold. If I'd looked at his analysed his PT stats correctly too I'd have noticed that his post-flop aggression is TINY, and the times he did put money in he most likely had it. My AQ doesn't look so good now... :S
Naturally I close all tables at this point. I feel pretty bad for a couple of mins, this is the worst cash session I've had in around a year.
Possible Mistake #1: Playing after a long tiring day. I worked a 12 hour day at work which was pretty tough and mentally draining, then 5-a-side footyafterwards... So I didn't start the session 'til 11pm. I knew I'd be better off watching a CR video, or reading. But when I'm in a motivated mood (sport in the evening usually does that) I just feel like hitting the tables. However just because I'm motivated doesn't mean I'm going to play well, I was probably a little too tired to be at the tables. I find this really hard to judge, but I think I need to be more careful playing sessions after long days in future, and really make sure I'm going to be playing my A game.
Possible Mistake #2: Playing my B game. I'd been running well at the start of the month and I was in a confident mood, I didn't really feel at any point in the session that I wasn't concentrating well enough... but looking over my PT positional stats I wasn't playing my A game. My UTG/MP VPIPs were at 17/18 (previously 10/13), and my CO/BTN vpips were 23/24 (previously 29/39). So despite the small sample it makes it quite clear that I was slacking back to my B game, despite it being difficult for me to see - or accept - this at the time.
Possible Mistake #3: Playing to "clock hands"I've set myself the target of 10k hands this month, which is a tough target for me, as I work a lot, I'm out a lot and also I'm going on holiday near the end of the month. So I've been pushing myself pretty hard to get hands in over the last few days. This means I probably won't be playing my A game all of the time, and won't be making the best decisions possible.
Also, because I'm playing to clock hands I was playing 7 tables which is a little ahead of me just now. I can easily handle 4, comfortable with 5, a little stretched with 6, but I was finding 7 pretty tough. They weren't that great tables either, there were a a lot of regs about, so I really shouldn't have been playing that many. Until the end of this 10k hands I'll play 5 tables max now, then at the end I can decide whether I'll up it to 6.
Playing to clock hands, rather than make good decisions.
B game instead of A game, playing to clock hands, rather than to make amazing decisions
Possible Mistake #4: Thinking a player is out of line, over a tiny sampleI noticed myself doing this a couple of weeks back, but tonight was a great example of it. I thought villain in the last few hands was out of line LAG when in fact he hadn't shown down a bad hand. He could have just been catching a rush of cards. I decided to play back at him - ignoring his betting pattern tells - because I thought he could be making plays against me.
Only took me a couple of mins to get over the beats, then I was feeling pretty good and happy to analyse the session and my psychological state lol. I'm really psyced to improve my game at the moment, and every mistake like the ones I made tonight I will fix. I'm happy I had a session like this so that I can analyse one of the biggest leaks in my game and work on plugging it.
I've never been in such a strong position with my poker game as I am at the moment. The amount of support I have from strong players, thanks to CR and my study group, is just immense. I've never been in such an great position before. I have such a HUGE amount of motivation to CRUSH NL and despite these blips I know I'll get there.
3am with work + squash tomorrow says goodnight!