I'm a newbee (just level 15) and I was recently asked to join a new a free company. I declined because to be honest I'm not very good right now. I have not figured out nuances of the game yet. I had planned to do pve until I feel confident in my abilities.

My question is did I make the right choice? Should I join a free company when the next opportunity arises because I could learn a lot by being part of a group? Or should I continue along my current path and wait until I feel more confident about my abilities? I'm a tank if that matters.