Some companies offer tuition reimbursement. For instance, Apple offers around $5000/yr even for Apple store retail employees. Work part time there, and full time during the summer and you should be able to cover your expenses with the addition of a loan and some small scholarships. The FA office may be able to help as well. Another alternative is ROTC, and you have the GPA and desired skills as an engineer for the military. I had a number of friends who went Navy ROTC and left school debt free. You’d owe a year of service for each year they pay your expenses, plus time in the summer, but that is far better than not continuing your education.
If you can get though the next year you could probably get a well paid internship with enough to cover your expenses along with a loan.