Binance is non KYC for less than 2 BTC buddy (like everyone is moving such amount lol). If it isn't a big hassle, create a new account with a new email (what I would do).
I did start using Metamask though recently, as I took part in the WLEO-ETH uniswap pool but, one way or another, I didn't manage to get my Metamask connected to my Ledger Nano S back then. Ended up using my Exodus wallet instead.
Strange... it' a pretty straightforward process from my side. Do you get any error message?
Give me more details and maybe we can solve something :)
RE: [Guide] How to Get Started in Binance Smart Chain with Metamask.