If you are not ready for it, don't force yourself to do it. I've done that many times, and have $10,000 worth of student loans and no degree. I've started classes, and never gone back. Now that I think of it, whenever I've really attempted college, my car has broken down. I've always had 20 year old cars, and big things crap out on them like fuel pumps and alternators. I'd struggle to get to school for awhile and end up exhausted after riding the train for 3 and 1/2 hours everyday while everyone else in my school are driving brand new cars and such. It's not just about paying tuition which is so expensive and rising. Not all of us can live with our parents. Not all of us have the motivation or energy to work 2 jobs and go to school. Not all of us have at least decent support systems. Don't beat yourself up. Take care of one thing at a time. You can drop your classes for now. No penalties for dropping early enough. No harm in admitting that you are not ready. Set up your circumstances so that you are better able to succeed in college. If you have to wait a little, it's ok.
What do you want to study? Maybe there is an online program. Many reputable universities are offering more and more full degree programs 100% online. What is your financial aid situation? If you can barely afford your rent, chances are you qualify for some grants and low interest federal loans.