Tell people that Im bisexual

I am 14 and know I might be young to know I am bi, but I do. I have absolutely no clue how to tell my friends and family that I am bi. Most of my friends are pro gay, so I think they would be accepting. I have been in a decently long relationship with a guy and liked it. But when with my friends, I openly said I have done more with a girl, than a guy. Nothing was said after that. I have done some things with girls, a few straight on dares and 1 bi. I enjoyed it. I want to tell people but its hard. I have told my bff who is gay and he was supportive. I am scared to tell may parents because, I already am not to close with them. I used to be but I am realizing this may be why I am not as close with them. I am not as close with my girl friends anymore. I don’t like how things are right now I want things to change. Any ideas people?