What can I do with my life, it’s such a mess?

I’m 32 years old, I severely injured my back and have bad genes I guess. 3 herniated discs in my lower spine. I have a very narrow spinal canal so when the discs herniated, they started pinching my spinal cord. I hurt every damn day. I’ve exhausted all my options except for a fusion, but every doctor I’ve seen says not to do it. I have had surgery already. It’s been 7 years of dealing with this. I have permanent numbness in most of my right leg. I feel like this has affected my life so much. Any argument I have with my wife, she brings it up against me. I feel like I’m so much more miserable and feel like I’m a terrible father to my 2 boys. Constantly yelling at them. And I just can’t stop being miserable and angry. Feel like I’m letting everyone down. Everyone already looks down on me because I haven’t been able to find a job that I can handle. Only time pain partially goes away is when I lay down. I can’t stand or sit for longer than 20 minutes at a time before changing positions. I sleep with a cpap machine that’s uncomfortable also because I guess I stop breathing about 93 times an hour without it. Sometimes I just feel like the world would be better off without me in it. I feel like a burden. This isn’t the life I want. I just really don’t know what else to do.

What can I do with my life, it’s such a mess?
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