各位大侠: Urgent help is needed

I am working right now. However, due to my carelessness, I didn't submit the dissertation in time. The deadline passed.
The graduate school said I can only graduate in August, not in May. The problem is: I am getting my OPT in May.
Can I work full time with OPT authorization if I complete every requirement for the program?
If not, how may I work full time? My boss is not flexible with part-time.

If any 大侠 can help with this problem, I would appreciate that.
luckOPT