Ello mate, first of all sorry to hear you're not in a good place
Now then, so really you wanna consider what you was doing before you got into this situation of where you feel that way, and what happens after you feel this way. I have recently gone into therapy and I found out I have sever depression/anxiety so I know it can be annoying trying to figure these things out at times
For me at least, I find that my wife & kids are what keep me going, before them I didn't know what life was and I tried to do stupid stuff like going out with my mates drinking and all that stuff all the time and while it was fun in the short term, the long term it just didn't help at all
What I would suggest with that being said, try find something positive around you and grip it at all costs. The main issue is finding what you can actually do to get to that spot first, and making sure you actually keep at it, example I can give you is the gym. If you haven't already, sign up to a gym close to you, get some headphones and a bottle of water and just go ham, you will feel great when you come out trust me
The Real Dwayne Johnson 'Hercules' Workout - This is the workout I follow (i have it folowed via a fitness app)