I got married young. I don't feel it held me back. I have done 98% of my travel with DH. He supports my career incentives, he moved with me so I could go to the school of my choice. After I'm done with my current degree we'll move so I can support him.
It all depends on what you want and what your man is willing to give. And that applies to you as well in his case.
As Bint says, there is a trade-off. For example, while I love my school and all, I don't like this new location, and if I were alone I would get up and leave to go somewhere else. But, as a married woman, I have to remember that DH has a full-time job, and with the state of the economy, it was hard enough for him to get this job, let alone for us to move and try and find another one.
I also don't like that now that we are both away from family, we both get to see our families even less, because we are away, and when we can go visit, we have to pick one or the other to see. So we're spending 1/2 the time we could be.
My program also requires a lot of hours of class and work, so sometimes I have to pick between going out with friends and hanging out with DH. He wouldn't tell me not to go with friends, but if I've been working 10-12hrs a day on my school work and haven't had time for him, it would be pretty messed up if every weekend I ditched him to do my own thing. That's just asking for trouble.
If you want to make all your own decisions without taking anyone into account, then don't get married any time soon. If you have things you want to do, and can find a man who is willing, sky is the limit.
Yes, I have little time outside of school and DH, but I also get someone who support and loves me everyday, financially and all. My single pals complain about getting home too drained to cook. DH makes me dinner on those days. He cheers me up when I feel I can't make it.
There are trade offs, but IMO it is worth it.