My Financial Aid is Gone !!!?

I am a returning sopre in college and i have currently lost my financial aid due to my poor grades in college. Last semester i was struggling with working and school at the same time and also took 3 courses just to have more time to work in order to be situated financially. Due to that my gpa has gone down. I am writing a financial aid re-in-statement letter and in case it gets denied, I'm asking if is it anything reasonable that i can do to still enroll in school this semester and raise my grades even without the financial aid the school gives me ???? I dnt have any co-signers for a private loan so what can i do ???? My cost for this semester is around $ 8,500 so what could one do and i don't think working will cover that. What can i do in mean time ???