Welcome to the forums Ori, when you have some time to kill read through the tips and tricks and builds board sections. There are a lot of critiques that will help you see what works and what doesn't. Also there are articles that explain Game mechanics, things like how to counter act/negate things, what effects stack and what doesn't. Also, there is a complete list of all the skills with all the information if you like to crunch numbers and plan things, these will also teach you about skills you've never known about.
Glad to have you around, keep up what you've been
Doing already and you'll be a solid member soon enough!