Get diagnosed with depression and a prescription for antidepresants. Not only do they kill your libido, but an orgasm will take so long and be so underwhelming you feel like your junk stopped working.
Antipsychotics are a good weapon too, you just tell a psychiatrist you have trouble falling asleep.
/s
Serious:
The problem isn't having erotic impulses, it's having unhealthy reactions to them. Like watching porn(*). Along with the advice Mushroom gave, I suggest stop watching porn and embracing being a sexual person in a way you're comfortable. Having partner(s) is good too. Or being solo, whatever is better for your situation.
Unironically hating yourself for "being horny" or being embarassed by it makes it harder to care for yourself. That leaves you with no control.
(*) There are reasons I call porn an unhealthy thing. I come from an ML and feminist perspective, not a religious or puritanical one. Read about the Communist line on the sex trade and feminism and you'll understand where I'm coming from. Kollontai is a great place to start.