Im 20 and bi actually. Ive never been with a girl as Ive been with my bf for almost as long as Ive been out to myself let alone the world. Dont worry about what others do or dont do, they aren’t you and don’t necessarily share the same interests.
And if youre in a spot like I was, the attraction to men existed romantically, but i didnt know how to process it outside of being horny. You have to eventually (and only through personal self-love) learn that you can love men romantically as much as you can women. It takes time to accept yourself, but regardless of your sexuality, Im sure you’ll get there. Best of luck and lmk if you have any other questions I can try to share my experiences to help!