I understand... Seems like when it rains, it pours.
I know there are some positive things in your life. Grab onto them and savor all you can from that.
Don't know all you're going though but sorry you're in this darkness right now. I won't always be this way.
Work is draining in itself. Even worse if you're not happy at your job. It can be overwhelming to handle. I know there are real reasons that jobs are depressing. The workforce goes through hell. Not enough perks, I'll tell you. and at the end of the year, where did it all go? the time, the money, the body, is it worth it? Well, we have to eat. Just do the best you can and try to make changes where you can. Don't beat up on yourself too much. It only makes things worse.
Are you getting good medical attention, so you're not having some of this due to physical changes, age or some underlying lows in your chemistry?
Just thinking out loud.
I hope you find some peace, even for a moment. Look harder for a little happiness in your day.