Hey, you are at the perfect age to follow your dreams, and do what you love. Once you are older, tied down with family, property, children, etc., it gets REAL tough to do that. Take a chance and enjoy yourself.
Oh yeah, most vital; START A ROTH IRA or 401K PLAN ASAP, and pay yourself FIRST, as much as you can. Start now, and let the power of compound interest work for you. When you are 55 or 60 and want to retire a few years early, you will be glad you did.
I have 25 years under my belt in a State Pension system, and I'll most likely stick around another 10 or so to boost it up a bit more, as I won't get SS. Then, I might just decide to take up a 2nd career in the Outdoor Industry, if I'm still walking. But if I was in my 20's and not already vested in a retirement system, I would pursue another path. Either way, save & invest your money. Time goes quick...