I am sorry for your loss.
There are a few things you can do. None of them will necessarily get you your money back, but there is a chance. Also, you should keep in mind the cost vs. how much you have to gain.
There are professionals that can help trace the crypto you sent to a known exchange. Once they do that you can often get a court order for the exchange ...
As far as i know none of the transactions are reversible once sent. Sorry to hear that, but you need to be more careful on the market many scam are going on. My advice for you is if you ever need an app to trade or exchange cryptos, the best apps would be Bybit and Binance.