I want to find out what's wrong with me
First of all, this isn't a thread asking advice on getting girls, but more about just social interactions in general.
I have always wanted to know why I don't have friends. Ever since I was a child up to now in college, I have never had a single friend. The only people I have ever had meaningful interactions with were my parents and some uncles/aunts. I have never had any interaction with any peers beyond simple greetings and asking quick questions about classes if I ever had any (but never actually met up with anyone to study together). Needless to say, I never got invited to parties, hung out with anyone, or talked to any of them outside of school. Basically I had acquaintances but zero friends.
I was tired of being lonely so I became a clown during the first year of high school, desperate to get some attention. It worked for a while, everyone thought I was funny, but I soon realized how lame I was being and dropped the act. Ever since then, I had been lonely again, with no idea how to make friends.
I thought I could convince myself that I could be forever alone and happy, but there's still a void in my mind due to an absolute lack of friends. I have plenty of fun activities to engage in (no, not fapping) by myself, but I've noticed the people around me go to parties and vacations together, and wondered why nobody would ever think to include me.
I don't think I am such an ugly guy, and even if I were ugly, that shouldn't hinder me too much in making male friends.
I want to take actions about my pathetic social skills and learn what to do. Could you help me? Thank you.