Heh, if over-protective parents is your biggest issue with them, then you have none :D I know it's weird to listen to a random guy on teh internets, but if I were you, I would stay where you are. You have bed and probably even free food. With your income, your life would most probably become constant struggle to even have enough to EAT, and I'm not mentioning how would you manage to harm any relationship between you and your parents.
However, if you just wait the said year, trouble with money would resolve themselves, because you will probly find a job for yourself and if your parents are that way, they will support you on uni. And, since you will be living by yourself, you won't have trouble with any kind of limitations. And, I have witnessed it so many times it hurts, you will most likely become to LIKE your parents - so many people who previously said they hate how their parents behave suddenly like the relationship they have now. Yeah, that IS a good thing :D
Of course, I am NOT you, so don't take me seriously - just my 2 cents :-)