Well.... first of all, not everybody has to go to college... You wrote "nothing motivates me to go to college" then don't go? You might get motivated when you're in your 30s, (it's going to be really hard to go back to school since right now it's the best time to go to college) but you can always go back to school when you feel motivated.
I don't know where you live but in California if you attend a CC, you can apply to have your fees waived. So you don't have to pay for the classes. The books are expensive but since you have your work permit you can buy them all used with the money you'll be making?