text: I only realized I was bi this year (I'm 21 as well) so I definitely get it being disorienting. I kinda mulled it over for a month or so before really accepting it. I think it can definitely involve the environment that you're in. The way I see my case, I probably suppressed any same sex attraction thanks to my Catholic family, and since I like women too I just went with that. If you wanna talk more about it feel free to DM me.