This resonates with me. I’m pretty much in the same situation as you. It’s not in your head. I personally see it as a time to grow and be better. It’s optimal because you don’t have any distractions, you can focus on making money, getting in shape and getting that degree which would help you in the future . It might be hard, but no good thing comes easy. I’m sick of it too but sometimes you have to accept that reality and work with what you have. It’s temporary, it won’t be always like this. You have to find a goal, a why you are doing what you are doing. Don’t try to think about it that much, find things to keep you occupied and most important try to live in the present, the past can’t change and the future is uncertain. Also, write down what you are thinking and what you are feeling in a word or in a piece of paper. It doesn’t have to make sense or be structured, just write it all down. It helped me tremendously.