Idk what to do. Should I come out or not?

I'm 16 years old and A Bisexual girl. I've realized that I Was officially gay when I hit 8th grade. It's not a phase and I'm sure of that. I'm attracted to both sexes and I'm proud of it. Love has no gender boundary. At my school i'm openly gay. My teachers know it, my classmates know it and my friends know it. They accept me for who I am and I love it. The sad part is that NO ONE in my family knows and now that I'm about to be a junior in highschool I feel like they should know but I'm not sure if I'm ready yet. I'm afraid that my parents wont accept it especially my father. But I need to tell someone in my family i've been hiding this for too long and its not right. I Want to at least tell my older sister since I'm the closest with her. She's really open minded but idk how she would feel.I'm scared and anxious because I want to let her know but Idk how to tell her or when to tell her. Please help.

I'm glad you asked, that's not soemthing that you should just keep in, or just letting it flow out to everyone. You should tell someone that you trust deeply. Not like one of your friends or some immature person. Most likely an adult. You should be proud for feeling that way, most people don't have the guts to even realize it. Tell them at a good time, like when they're all relaxed and not upbeat, worried, or having problems themselves.

Hope for the best, and hope I helped.