I've wanted to start pvp but I've seen a few posts on here, which make me scared to even start!

I used to wander into the larger front lines and always had a lot of fun, I used to play as blm, where (back then) I was told my role was mainly secondary support, like slowing, freezing, etc. Has that changed much? Tbh I'm worried about taking a blm in there at all, particularly 4x4 matches - I don't think it's fast enough. If anyone could offer some insight I would be appreciative.

Also, just so I am clear, is pvp just the players on your world? Or is it like normal df? I only ask as the queues are so long and have timed out on me occasionally.

Thank you