How can i get people to like me?

basically, i have no friends because i'm silly and didn't know when to calm down and i know people say i need to just be my self i just end up annoying someone even if i don't do anything i have some friends but i don't like hanging around them for to long because they will just get annoyed with me so i just wander around from person to person when i try to change people don't give me a chance and they just tend to ignore me some times people do talk to me and stuff and are friendly but they don't really like me i hate being the kid that has no life and just sits at home doing nothing it just annoys me that i could be outside playing rather than watching movies or staying on the computer all day and i cant just tell anyone about this because it just makes me upset and people just say be your self when people find me annoying and my brother didn't help me he convinced every one that i was gay when they didn't even know me what also upsets me is that i have no confidence due to my brothers making me feel horrible about my self i may not be perfect but i just want to change for other people but for myself i don't wanna grow up and think about my school days as being a loner who had to stand around people and just try and join the conversation. i realize that i have no confidence and stuff but im not here to make you feel sorry for me please can you help me i really need it thanks :)