I didn't send it, the guy sent it to me, and I used it on his btc casino (primedice) so the money is technically still mine, in the wallet I created, but I've forgotten the email.
I think you have lost your bitcoin because, according to the principle of blockchain, when a transaction is executed, there is no way to reverse it. You should be more careful in the next transaction, every mistake in the market must trade with your own property, condolence with you.