When i was in high school, i could get pretty much about any girl i wanted. I used to steal girls from even the most attractive guys. Only because i was very confident and serious. I started talking to every girl, every cute teacher. I did not care. I talked to girls with boyfriends. You just gotta get out there and start talking to every girl. It doesnt have to be full conversations. You just gotta get your self out there until your known as that confident guy who talks to all the girls. I remember i would only use "hi im phat, whats your name?" after 2 weeks of approaching girls at school. A girl came up to me that i approached in the hall and told me her friend liked me! Her friend just happened to be a girl i approached in study hall. I only talked to the girl once. I ended up dating that girl for 2 years. She picked me over the biggest jerk in school. Because i was, cool, confident, and serious. And funny at the right moments.
You said your funny and clownish...im gonna tell you right now to cut that shiit out...dont act like a clown. Nobody likes bozo the clown. You gotta be serious. Instead be funny at the right time. Being funny all the time is the most unattractive thing you could do.
The kind of humor i used to get girls was called " dare humor" in study hall i would have my groupie of girls who i talked to. I would be like "you girls wanna see my putt my ass in that kids face?" they would be like "o my god, you wont do that!!!!" i would get up and put my ass in that persons face and the girls would be screaming with laughter in the background.