Marijuana gave me PTSD

I genuinely don’t know what to do, I had a bad fucked up high years ago well over eight years now and I’ve never been the same. I literally cannot be around people that consume cannabis. If I smell weed, I will feel like I’m high again and will freak the fuck out. I don’t know what other direction to take. I don’t know if I need like serious intensive therapy more than I’ve already having. Like some serious mental PTSD work or something… I’m sure people’s gonna make fun of me, but I don’t know what to do like it’s ruining my life…