I’ve wanted success, but now I’m out of options

I’m 26, just had to quit a job I was worked to the bone at. Not a sob story, just herniated a disc and had to keep lifting 200lbs+ without any machinery. Stopped being able to do the things I love because of it. I’m back in school pursuing a double honours in chemistry / physics now. A goal I’ve had for a while, just needed to get some financial footing. Well, I paid rent for December and have some food in the fridge. I can focus on my exams. But come January I have absolutely nothing. My bank reduced my credit card limit, my student loan, and LOC is exhausted. I cant do the physical labour I’m good at to make ends meet, school is my top priority and I’m on track for a 4.3 but I’m lost on how I’m going to manage. Where can I turn to online? I’m great with computers and have a lot patience. Right now in my downtime I’m doing a lot of stretching trying to get my back right so I can lobster fish in May for some good money. Just hope my back can keep up. words of wisdom and hard truths appreciated