It's your money not ours so why asking it to us? Make your own research, and decide base on what you saw or watched. I can say that just convert it into stablecoins, but some might not agree. I can also say that you should convert all of it into Bitcoin and some might disagree as well. I can say that just hold it until you want it and some will disagree. Better make our own decision and don't let us decide for you because you will just be confused because we don't have the same opinions/answers.
After all, there are many CEX that turned out to be a scam exchange already in the past. The recent FTX incident just shook us investors because the ones we thought as a good and big exchange turned to be a scam. I'm not saying that Binance will do the same, but it's better to be safe than sorry. For me, Binance is a good exchange since they have many users worldwide. Just be ready if the worst scenario happen. What your friend said might be true or not.