I've been there. Not comparing our lives by any means, but i mean my own battle. I was married with kids in a home we'd just bought and that broke down, so being apart from my kids and pretty much starting a new life in my late 30s isn't what i had planned for life.
I spent many hours bombing up and down deserted roads and more than once thought about just putting my foot down and closing my eyes, but honestly from my experience, it just got better.
It got easier to get out of bed and suicide wasn't my first thought in the morning, sad songs didn't hit home as hard, you don't look in the mirror and completely hate yourself etc. A lot to be said for getting through tough days and letting time pass.
As above have said, you'll know yourself the drink isn't helping but i've been there again and it just becomes something of a routine and almost a comfort blanket, a constant in your life that you can control when other things feel completely out of control.
Don't be afraid to talk. I spoke with the Samaritans, i never spoke to my friends or family and i regret that. None of them really know the lows i got to, and there is something of a comfort for being able to speak about things online behind your anonymity.
Feel free to message me if you like. I don't know you and nor will i judge, but if you want somewhere or someone to get your thoughts out.