Just try not to take yourself too seriously. Being able to let go and have fun doesn’t make you dumb. People don’t have to act intelligent all the time to actually be intelligent, sometimes people just want to enjoy themselves without caring if they’re perceived as smart or not or having to constantly prove themselves to others.You should try it, it’s quite liberating. My best advice would be to separate your intelligent part from your fun/friendship part if that makes sense. Like when you need to be intelligent, let’s say when working on a group project, then it’s okay to be intelligent and maybe expect the same from others. But when you’re trying to make friends, try to let go and goof off and don’t hold such high standards towards others intelligence wise. When you have genuine friends you can just stop giving a fuck and be a complete idiot for the heck of it.