Feel like I will enter a pit of depression if I don't act right now

Closing in on a year. It has been terrible. 100+ hour weeks as the norm. I have spoken to my staffer, VP, even MDs. Not to ask for a lower work load but just to make them aware & well, I've been told it is what it is. 1 year of no weekends, no Friday nights, barely a few hours on Saturday. I accepted it because I thought this was what banking was and putting in 2 years would be worth it. Nothing is giving me joy these days and I have nothing to look forward to. Every Sunday, the only thing on my mind is the huge laundry list of tasks to get done during the week. If I leave where do I go. If I stay how do I stay. I'm faced by so many disturbing realities which are impossible to accept. I don't want to leave banking, I enjoy the work and think I do a good job, but the hours have taken every piece of my life from me.