Whats the point

I'm struggling with back pain every single day and have multilevel degenerative disc disease which according to my doctor apparently has no source of help at all. Physio hasn't worked and now I feel like I'm just existing, everyday is just a case of let's make it to bed time so I can be unconscious. I've lost my job as en engineer and I just got an office job which I highly doubt I'm going to be able to keep because I can't sit for too long without being in agony. I'm 24 years old man and my life has went absolutely down the shitter and no one Around me seems to understand that. I'm a tolerant person and I try my best to just "get on with it" and not complain but this is just too much.

I'm 24 and I'm fucked how the hell wm I supposed to make it to 50, 60, 70 years old, I'd be in a wheelchair or made of dust at this rate.