If you are here reading this.. I feel you. I was in your place (unfortunately more than once, despite having it all). I CAN promise you that it will all be better.
Can I ask you to do this small exercise?
Before going to bed think of one good thing you have in your life and that you are grateful for and write it down on a piece of paper. Hopefully, this will help you understand that you still have a lot of goodness in your life.
I genuinely wish that you feel better soon - and remember if it feels too heavy to do it alone, reach out for help!