This sucks right now, but you've got this. Its bad all of this happens at once, but you're going to work the problems, you're going to find workarounds or solutions, and you're going to make it through this. You're going to face some other challenge a year or two from now, and you're going to look back on right now and be confident you'll get through THAT challenge because you got through THIS one successfully.
Sit down with your girlfriend and figure out what your available resources are, what goals are most important in the short term, come up with a plan, and work the plan. YOU'VE GOT THIS!!! I BELIEVE IN YOU!