You can't.
You can't do it all. I hate to tell you this, but this is something that I've recently had to overcome and understand. I am a double major, am working 3 jobs and doing theatre. I've realized that there are so many sacrifices in doing so many things. You're going to have to figure out what you have to give up and that is sometimes very daunting. I'm having to learn what I should do and what I should give up-I know I have to give up, and maybe you do too and you know my dilemma, but it's so difficult. Having a day off is not an option for me because of my schedule. For this reason, I do not sleep or eat well enough and I know that's wrong. Mental health should be an absolute priority.
Mental health is just important as physical health. In an ideal world, I could work, go to school, exercise, eat well and have time to have a hobby. This is not an ideal world. We can't do it all.
With the way the American economy is set up, you absolutely cannot live on minimum wage. You can hardly live on something a bit higher on minimum wage. People, like me, feel like they have to work multiple jobs and feel like they're not supporting themselves if they're not. Universities cost an arm and a leg, and even though I have wonderful support paying for that, I still feel a huge weight to make money to make up for this burden of college.
Pick your battles. With everything you're wanting to do, you don't have time for drama. Don't get into it, don't deal with it, walk away from it. You don't have to fight with anyone. Stand up for your self, deal with it. People who deal with drama probably are not busy. I'm willing to bet.
You can't do it all. Know when you need to quit something. Even if the job is wonderful and you know that, let the employers know that and let them know that you can't do it all. They may not be happy, but you have to work on your happiness. Selfishness is in the human condition because humans have evolved to have it. That's how humans survive and it's always been that way.
You can't do it all. Look at your life and what you're giving up. Is it what and need to give up? Is there a hard decision you need to make to make your life better? Pick those battles. Talk it out. Figure it out. I'm still working on it, too.