When is a good time to move out of my parents house?

I am 20 years old, I have a good part time job but i pretty much work full time. I just bought a car and dont have any trouble making the car payments. I took the fall semester off so I could save up my money to pay for school and a new car but am going back this fall. I have a lot of money in my saving account (at least i think for my age, im also a big tight wad) My boyfriend and i have been together for almost 2 years and have talked about moving in together. I have a good relationship with my parents, but I still have a curfew and still have to ask to do things. I would like to move out, but I'm not sure if right now is a good time. Should I wait to finish school? If I do move out it wouldn't be for another 6 months anyways. I'd just like to hear some good advice! Thanks! =]