Was going to send a PM with some tips, but this threads gone off topic enough already maybe some others could benefit.
Heres some general ideas for you Robb, these are literally things I've done when I've been running bad:
- Go through your 25nl DB and look at your losing hands. Identify the ones you think you played badly. On a pad, keep a list of categories of bad play (bad call down, bad bluff, took PP too far, whatever) and keep a score of each. This will really help to identify your main leaks.
- Create a list of rules. Base it off your play leaks identified above, and other areas you think you need work on (table select, dont play tired, whatever else) and print it out and put next to your computer, read it before every session.
Some specific stuff from your comments above
1. You call when you think you're likely ahead more than behind. HOWEVER take into account the threat of leverage. Calling a small bet on the flop, could mean being faced with big bets on turn and river. Think about whether its really worth it. If you do call flop to "evaluate turn" then be prepared to fold if things didnt improve.
2. I very rarely limp, when I do its overlimping at least one bad player that I'm happy to see a cheap flop with, or specific implied odds situations (eg otb or SB with multiple limpers and SC type hands ).
3. You're probably overreacting to the 3-betting. Yes it happens more, but just fold your weak hands and 4-bet your best hands (QQ+,AK+). Maybe call with some moderate ones like KQs or even TJs depending on their 3bet size. I've probably 4-bet bluffed 5 times in 40k hands of 25nl and 50nl and only with specific reads. One of my leaks was calling 3 bets too much. Postflops a little more interesting, but look to identify patterns. Again its rarely wrong to fold weak hands to a raise. One of my rules above is "when faced with aggression postflop, stop and ask myself what he has". You gotta be prepared to fold when you're beat. People arent bluffing anywhere near as much as you'd like them to be. Get reads on people.
4. Target the TAGFish with these. I wont do it on 2 broadways, but a single broadway (unlikely to have hit them just from pure odds point of view) where I'm saying "I hit the Q, did you?" or all unders "yes I probably called you with a PP, you want to take on my set?". Dont overdo it though, its an occassional move.
For you personally, I think you're too much of a numbers man. You learn the %s, you figure the theory, but you dont seem to get the concepts. Spend your time thinking about ranges. Think about what happens to those ranges when you raise v's when you call. Think about how often their range can improve if you dont end the hand now, v's the chance of extra bets if they dont improve. Think about how your hand fairs v's their range, and whether you'll get more value by raising (do they call with enough of their range that you beat, or only with the part of their range that beats you?) or by just calling and letting the weaker part of their range bet again.
Reply getting long, it really comes down to my initial point though. This shit aint rocket science. If you're getting too bogged down in the nitty detail you're probably missing the bigger picture stuff. Win as much as you can when ahead, lose as little as possible when behind, the work is in figuring out which you are.
One last thought, without coming over all weak tight, its often better to make a small mistake by folding the best hand, than to make a big mistake by calling big bets with the worst hand.
If you want some more thoughts/tips send me a PM.