I transfered from Hanharr, which is very dead to Jedi Covenant, which is very active and for the first week I felt I made a big mistake by coming to such an active server for the reasons mentioned by op, but really it was that I wasn't used to sharing and hated the idea of waiting for a re-spawn or not being able to take what I wanted because all the mobs were mine. I'm not saying op feels that way, but I'm a mostly solo player also and that was my attitude. I adjusted my play a little and now I enjoy all the activity going on around me. I still solo 99% of the time but I feel more connected to the community on JC and I get my dailys done just as quick because the trash is almost always cleared or if help is needed its right there. On Hanharr I felt I was one of 30 people that plays this game.
Anyway op, just adjust a little and have fun with it, the game is not ruined.