You can't pay your house/apartment and other bills without a fulltime job, so if you want to go to college to try to get in a better life position, you've got to do it on top of also working fulltime.
I tried to do this for a while as a teen -- I worked as a landscaper all day, then would ride a bus 1 hour each way to night classes at a community college.
Said FUCK THAT and dropped out after 2 semesters.
I applaud anyone who can actually do this. I'm not sure I could finish college even with zero responsibilities, you have to take so many boring classes you don't care about as pre-requisites.