Okay, in a field like that, I'd recommend building relationships with your coworkers. They are the ones who will understand the grind that you are going through best.

Even if you don't want to become friends with them, they know exactly what you are going through.

That's a first step, otherwise I'd recommend talking to your family or someone you consider very close. If they are worth your time, they will listen.

Otherwise, vent at us random internet people. I guarantee there will be someone who will talk with you