Now that the MM wallet has been hacked, what should I do?

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Your wallet was not hacked, but you were the victim of your own stupidity. Most likely, you have fallen victim to a phishing scam and linked your wallet to a scam site. You should be more careful in the future.
I'd advise you to watch your mouth. I went to metamask.io which I was told, and researched, is the legitimate site. Just stay off my post.