Woke up this morning and found 0.92ETH drained from my wallet.

I don't know how it happened, I might have left my MetaMask connected to some site I minted from in the past few days but I am gutted I started that walled from like 0.05ETH and work it it all the way up to close to an ETH and then bang. I do not know what to do is there ANY way to get it back? Or any way I can contact someone to help assist with this? Probably a long shot but what can I do. How can I stop this from happening in the future? Please help. Thanks frens.