Go for it mate! Plan it loosely and be flexible. And as HM said, even if it goes tits up you'll be unlikely to regret it after. The thing is to not keep putting it off. People who don't do what they want tend to be either letting their life pass by while they figure it out, or are concentrating on the negatives too much. Of course it could be a bit scary, but that means it'll be even MOre rewarding!