Jophe-
a couple things...
just for my own knowledge, and purely objective (you can pm me the honest answer if you want), what do you say to your girlfriend/how do you HONESTLY regard her/how do you treat her accomplishments. Do you praise? Ignore? Get mad or happy or what, to her? I just want to know becuase I have sometimes been the "high achiever" dating someone with less things going on for them.
also, i'm 23. I've had this same problem but lately I've just been thinking "one thing at a time"...usually my "dream" career is NOT something I would like in real life at ALL! So I dropped the artistic ambitions and such, and just went ahead and signed up for real estate class. I just recently passed the first exam...if i pass the one in OKC I get my realtor's liscense.

Pretty cool for someone who usually lives in their head, no?
But seriously. And this is something I have prided myself on advising to Janine

The best thing for me is to really do one thing at a time. If you have a lot of things you have to do to build a career, just think: what do I have to do? and do the first thing that pops into mind instead of thinking and analyzing over/about it. Just do the first thing first, no matter how high or low of a priority it is, that way you have it out of the way and can do the next thing. Don't worry if it was the right or wrong thing, because the experience you have gained from a) actually following THROUGH on something and b) anything related to the task you have done, will stay with you forever and help you have even more confidence to do the next thing. It has helped me.
All that being said, I would suggest going out and finding SOMETHING...you could do real estate like me

Is it my dream job? No, although I love houses and buildings and always had an obsessioin with them. But I feel good because it's something I'm working towards, that could get me financial independence if I am good at it.
Wow, even that thought is scary.
Honestly, there are probably close to zero people our age with jobs they really love, or who are doing what they REALLY want to do. They are ALL doing it one step at a time, and your girlfriend has probably just developed that habit a long time ago, nothing to compete wtih really...she just had gotten into the right habits earlier in life. Most people don't so don't worry if you're "behind", because you're not. I know some people who are "behind"...the ones that truly will never get anywhere...hehe...you don't want to meet them. And you don't sound like one of them at ALL.
It may just look like everyone is more successful than you because you're worrying about it and because you haven't set a solid foundation yet and are still kind if in your head about the whole thing.
I would just find something, anything, and be like "what do i have to do to be able to start doing this" and take it one step at a time. Don't even worry if it's the right thing or what you want to do in life, because if you REALLY want to do something, you will somehow make time for it and do it. Otherwise it was just another mental distraction.