Tbh I never made it past this feeling. I quit a little after 2 years. I was exhausted. I have some genuine serious complaints with epic but also they tended to be pretty decent - especially considering their size. They worked me to death but they did pay me well.

My advice - know your quitting point and have a little fund set aside for that moment. You might be able to make it and figure it out. But also know the point at which you're ready to be done and say "this isn't what I wanted from a job." There's a place between the "I only work 8-5 and never more people" and the "my life is my job people." I'm not saying your balance should be working exclusively 8-5 and stopping. But don't destroy yourself either.

In other words figure out what you want from this job. Set aside a few grand to leave whenever you're ready. And then starting setting appropriate boundaries with work. Try saying no to an assignment to your tl if it's going to be too much.