To OP: If you can find a party, it doesn't always have to be a full party, mayhaps of 6+ people. Put yourself up on the Party Search feature as Looking For Party (top left corner) with your desired job. Maybe toss a few shouts here and there in Ul'dah to let people know you're looking.

I suppose my concern is that if there's nothing that interests you that doesn't feel like "oh gawd why am I logging into this game" before level 50, it may be best to find another activity. One that will have you going "shyt yeah! I can't wait!" at the loading screen, instead of investing a week or two leveling up to experience level 50 loot speed runs, sexy spiritbond parties, hamleteering, seal grinding, and other fun stuff!