[coming out] I'm finally admitting it

A little info on me, I am Male 17 and have been straight all my life. I had always known my life to be like this until a few days ago.

So all of my friends say that I act gay and give off the "gay vibes" to other people. Everyone has told me that for a couple of years but I always dismissed it and acted like I was straight because that's what I thought I was. Until now. Lately I've been questioning whether or not I might be bisexual because I woke one day with the big question "Am I gay" I recalled last year there was a boy that I've always knew about who was exactly like me. He was nerdy, liked smash bros, and seemed like a really cool guy like me. I felt this strong passion to try and connect with him because I thought we could be really good friends which sounds weird. I had never felt like this before and it was a strange feeling. Fast forward to today and now I'm starting to realize that I'm attracted to both genders. My family has never had anyone gay in it and I thought I was the last person to become bisexual but here I am. I'm completely lost and don't know who to tell and who to not tell. I kinda wish all of this would go away so I can be normal again but I think I'm stuck with this one. I'm going to stay in the closet to most people for now because I don't feel comfortable talking about this. Any suggestions?