I vote to keep going, I think its harder to restart then to just finish it now. What are you studying?
I've restarted twice and I agree, I don't ever want to lapse college again, because the motivation to start again is a bitch. I'm studying Chemistry, but I don't know what discipline to focus on. I really like the field, but I don't know what to apply it into.
I think getting that chemistry degree will open some doors, but it's not going to immediately equal a higher paying job. In fact I majored in biology, which involved a fair amount of chemistry and physics at my college and was a pretty difficult major because of that, also involved calc 1 and calc 2. Actually I worked very hard to get decent grades. However after getting the degree the jobs that were open were paying less then what I was already doing before I went to college, which was respiratory therapy. I had a friend go and get a job for 11/hr with the same degree, this was in 2007. Later I met another person from my school a year ahead of me, also Bio major, working at the ticket booth in Disney world, hoping to transfer to the Animal Kingdom. I just mention that to say just because the degree is hard to get doesn't mean society deems it to have high economic value. That was not readily apparent to me when I started college, I'm guessing that is true for much of my cohort.
I think technical jobs are way underrated for some reason, but they pay very well. I'm most familiar with the medical stuff, X-ray tech, CT- tech, Respiratory Therapist, Audiologist, Physical Therapy Assistant, Surgical Technician. If your inclined towards medical, these frequently don't require 4 year degrees. (Respiratory does now I think, it's been a while since I was in the field).
Other technical jobs away from healthcare can pay well too, welders, plumbers, carpenter.
I really think 4 year college is financially beneficial to a very small proportion of the people who enter, but that is my experience with my friends take it for what its worth. If you feel like your struggling to stay afloat and your grades reflect that I would strongly think about the technical jobs. You really have to be honest with yourself and what you want, or you may spend a lot of money for something with questionable value.