GL on your goal. I have found a few helpful pieces advice about my game on this site and they may help you out as well:

1. Don't be afraid to bet your good hands because you want them to stay in the pot. You end up screwed more often than ahead.
2. Position and Hole cards are the key factors followed by putting your opponets on hand ranges based of observation. (which I still have trouble with)
3. Watch OPP's closley. Take note on who limps with what (SC's, big pairs, weak any two suited) who raises with what, who checks/calls down med. hands (these are your Value whores)
4. Fancy plays are almost useless at 2nl. Don't think that because you have folded the last 20 hands they will not call a raise from you. Most people simply do not pay attention to your image at micros. Play good cards and be willing to lay them down if the situation becomes unfavorable. (which I still have a lot of trouble with)
5. Post some hand histories that you are questioning your play on here. They have really helped me to see where some of my leaks were. (Take the advice that is given, very important) I have found most of the people that reply actually do want to help you become better.
6. Download the free trial of holdem manager. Even with the 15 day trial you will see problems with your game you never even noticed.

Like I said these are just things that have helped my game out and hopefully will do the same for you.