How do I know if I'm bi?πŸ³οΈβ€πŸŒˆ

I recently started to think that I think I'm bi, but I don't know if I am. I watch porn & I like to watch all of it, even BDSMB, so I also think I'm in to that, but I have no idea about anything. So I thought I would post on here to see if I could get some advice, that I desperately need. πŸ³οΈβ€πŸŒˆπŸ’šπŸ’™πŸ’œπŸ’›πŸ§‘β€οΈπŸ³οΈβ€πŸŒˆ