Desperation and this is my last resort.

I'm working full-time.I'm trying to finish my education and nothing seems to be working out. I'm behind on my mortgage and my car's about to be repossessed. I'm waiting on response for a promotion at work. I work full-time. I do side jobs. I'm in school half time and I'm trying my best, but it just doesn't seem to be good enough. I'm about to lose everything. I'm desperate and I don't know what else to do. If you could help me at all please help me. I have spinal issues, so I can't just pick up more jobs, I drive, do computer consulting, I volunteer runnjng AV at church, I don't smoke, drink, go out, have credit cards. My gross is $300 over my ability to get help, but my net income is less than 2k/m. My morgage is $2000 behind, and $720/m. Car pmt $320, also 3m behind. I just got letter its going into repossession if dont pay $1350 by Fri. My entire paycheck is $975.