Before you jump into internet marketing, you should try to realize just how important Internet Marketing Statistics are to your future. Going blindly into the competitive world of internet marketing is OK, but you have to try to learn from your mistakes.
If certain statistics, such as where your traffic is coming from, is dictating that a signature in a certain forum is generating a lot of hits to your site, then make note of that fact. Use what is working and enhance it.
If a certain tactic is not working, drop it or change it around and re-implement it. Overtime, you will have devised a system that works for you personally.