Toxic jobs drain your life, even when you leave work you're worried about work, worried about getting fired from the toxic job...unless you can scrape together a small amount of money saved. If you're sitting at home spending what little extra you have trying to distract yourself from thinking about work recognize that that cycle will NEVER END. Make it your mission to save every damn penny you can until you have a small amount of savings.

When you have that money, you'll notice that you're not quite as worried about being fired because you know you'll be able to pay your rent/mortgage next money, you'll have food on the table, and you'll be able to cover the bare minimum of costs to live. The situation has now changed dramatically because you could quit tomorrow if you needed to, and you'll be okay next month.

Working the toxic job has now stopped being a necessity, and now its a choice you make. You choose to be there. You have the power now. You can choose to quit and be gone if you absolutely need to and you're not going to be homeless. Now you work the toxic job not for them, but for yourself. You use that job, as toxic as it is, to get what you need out of it to raise yourself to the next level of what you need to go elsewhere. You're also not trying to avoid thinking about work because you're not scared of it. You have some mental capacity back and can start asking yourself what you want to do next, what you need to do that, and how to get those things accomplished. Is it more school? A certification of some kind? A tool needed for your trade? Experience? Maybe you can get that experience at your toxic employer. Volunteer for what the work is that would give you the experience. You're going to make mistakes in this new work. Make your mistakes there at the toxic employer. Gain the knowledge you need, then start looking elsewhere all.

Find your new/better employer, and make your escape.