I’m kinda misanthropic
I was once too. It's neuroticism, walaal. For me the cause was a p0rn addiction, a poor overall diet and workout routine and an idiotic tendency to self-isolate and be too bookish. Attempting to quit p0rn, eating a more species appropriate and wholefoods diet, working out, getting some sun and pushing myself out of my comfort zone to be more social and do beneficial things for my local community (i.e. volunteering at animal shelters) pretty much completely melted away any misanthropy.