Hi. I Am A 12 Year Old. I Have A

hi. i am a 12 year old. I have a had a bump on my head for about a month. the area where the bump grew was bald. and just today i pushed it. and not even a little. then i oozed out. i wanted to get all of it out. then i started seeing there was a tiny bit of blood. i really wanted my hair there to grow back because it looks like i have a bald spot.