Yeah I would recommend two things.
1) Switch servers and go to a server like The Swiftsure. That server always has a lot of people any time of the day.
2) Stay on your server and wait for server transfers.. if they even happen.
I went with number 1 and I had a Jedi Knight at 34. Alderaan has 3 people on the planet and I just had enough so I went to The Swiftsure and I'm on Dromund Kaas with 240 people. Also I'm an Imperial Agent now.