Well you have come to the right place! Do you play cash or tournaments?
I want to become good / well versed in tournaments but with the blinds going up so fast making you push in some weird hands (at least for me) is a bit rough.
Thus following bad calls / pushes and I'm out.
So at the moment I'm sticking to 2NL to learn the game a bit better. Knowing when you can call / put a bit of aggression on the table.
Still get caught in not knowing when to lay a hand down. But I guess we've all been there.
I must say this site and the courses are amazing especially with the video's where you can see the thought process in action.