Can you be immune to weed?

I've tried getting high many times and it never seems to work, no matter how much I smoke. Everyone says it's great but the most I've got was feeling stupid and forgetting things, getting dry mouth n smelling like butt after. I thought it's supposed to make you feel good.😧 I don't even think I get an appetite after. Are some people just not effected like others? I don't think it was bad weed because I did it with other people and they said they enjoyed it. Or at least got high. What's wrong with me?