1. No, you should not give up.
2. You need to find a "coach". This could come in the form of a mentor, a life coach, a therapist. A third-party who can help you refine your goals and work out a plan of milestones to get from here to there. (Refining goals is important...you have a lot of big goals.)
3. I feel trapped a lot too...and agree that everything seems like a long haul or impossibility. What I've learned about myself is that I learn by doing, and that the key is just doing things. What I mean by that is that I just try stuff and as I'm doing it I figure out if it's what I want to be doing. That's earned me a little bit of a bad rap as a person who starts things and doesn't finish them. But, the alternative is worse: a person who sits thinking about how things are too impossible and never does anything.
4. I don't mean to dampen your ambition, but part of the problem is that you're too damn ambitious. I have a little saying: to build a big business, you have to build a small business first. In other words, if you have big dreams...and you do...you're not gonna go from 0 to 60 overnight. Rome wasn't built in a day. Start with a small ambition, achieve it, then build on that success and make it bigger.
5. And, don't give up...you're only 31 and you're already on third base.