Read the posts on FTR epsecially HH and strats forums
Go and get some books.
Read the webpages online and watch some TV poker.
What youll notice is the same ocurences eg TV always has PP's vs overcards all in preflop. While this dosnt work for cash games it begins to show the recurrent situations that you need to learn and that stop you losing cash when you dont need to.
The key point early is to make good decisions which can be difficult without a lot of experience. Newer players concentrate on bb/100 where this isnt important. It isnt about making the cash per 100 hands its about making the correct decisions. Once you do that the bbs/100 will come automatically.
Also, learn about what constitutes good tables and players you want to play against. This is key to make sure you make money consistently. If you sit at poor tables you will eventually make poor moves etc.
Go learn limit! The way that you have to play in limit holdem will help imo for you to understand why people bet when they do and what cards people are playing and why. This for me was key to putting people on hands and understanding what they play. Therefore you can improve your post-flop play which will be a big advantage.
The two key things to learn are pot odds/implied odds and position. Once you can 'abuse' position against poorer players you will make a lot more cash.
BB/100 is not a particularly important stat imo. While seeing a big number is good for the ego just make sure you are beating the game. Its more important to be making good decisions and plugging leaks then your bb/100 will go up anyway.
try to play all the games available, mtt/sng and ring. Learning how each plays will add to your knowledge of poker plays and moves. Helps post flop etc again.