Struggle with micro grinding - how to find my leaks?
i play poker over a year now, with not that bad live results (won few live mtt's, also made some profit in live cash games) few weeks ago i decided to start properly grinding my way up in online poker. I deposited $40 on fulltilt, and grinded and grinded.. ended up playing break/even poker after 50k hands on NL2, but with help of deposit bonus and BBE promotion i ended up at $130. I decided to to move up to NL5 a that was where my trouble started.. i just couldn't beat the game, couldn't handle variance (and to be honest with myself, tilt too) and dropped back to $80.. moved back to NL2, grinded back to 100+, and the same proces repeated itself..
Only this time i didn't move back to NL2 till i was down to $60. I totaly lost confidence in my game and am no able to beat the lowest level anymore.
As for my poker education - every day i keep reading forums, articles etc., watching videos.. i also started to use PT+HUD, trying to analyse my game, but although i can see how badly i missplayed few hands, i still fail to apply that to my future game..
So i'm seeking an advice - where to look, what to do to get better and improve?