I hope you’re ok? Have you got anybody who could support you in leaving? Like somewhere to go for a while? I’m really sorry you felt like ending things and can only imagine how helpless you feel. Have you tried speaking to your GP? As I really think you need someone to talk to.
I feel like you ( I’m not trying to belittle how you feel) in that I feel helpless, cannot leave, have nowhere to turn or feel like a burden or feel like things will get worse. So like you there are lots of times when I feel like ending it is the only way out. But then I think of my son, who it would destroy as I’m sure there are people close to you who’d feel the same. He’s not worth losing your life for. You’ve been really brave in speaking up. I’m sorry I can’t help you more. Sending big hugs and love❤️💕