Things that go on on a teenager's mind

Thing's that go on on a teenager's mind (chapter 20)

I somehow feel very rejected when people don't allow me into conversations. Now, that I'm almost an adult, but doesn't change the fact that people just bombard me with the word "no, it's an adult talk". I mean , all I want to do is learn. It's not like I'm 13 or 10. I usually get rejected like this by friends. I guess it's fine, it's unfair but that's life.