Ah dude! You sold BNB! BNB is an incredibly solid hold - for two main reasons:

The first is a decentralised Binance with it's own blockchain. BNB will be converted to the coin of the Binance chain, and should rocket in value.

The second is that Binance is right up top on the crypto exchange size list, so it sees serious volume. As you are no doubt aware, BNB is used to discount trading fees. As more people use Binance, especially institutional money with large trades, so your BNB will continue to climb in value.

Buy the next dip. And hold it. And never let it go again! I sold off two thirds of my BNB not too long after buying it from a very young Binance. I regret that sale to this day.