Motivation and support part of comment:

You do this one step at a time, one decision at a time, one breath at a time. Acknowledge that it's hard and unfair. Acknowledge that you're burnt out. Then keep going. Goals often look farthest away when they're just out of reach. Keep reaching, because while there are no guarantees you will get there, it's one of the only things that will improve your odds.

Practical advice part of comment:

It seems to me that one of the cruxes of your difficulties is you need the money. Is there a way you can cut back on expenses, at least for the next month or two, so you can cut back on work and finish your pressing goal of writing your thesis and studying for graduation? Can your school help with, say, meals or utilities? Or do they have an emergency fund, or guidance services that can help you find other resources? Can you explain the situation to your landlord and get a delay on paying rent - if they say yes be SURE to get it in writing? Can a friend loan you a couple hundred bucks? What are you eating, can you eat more simply? Just find a way to carve at least 50 hours out to finish your thesis.