I find it a bit suspicious that you made a withdrawal after each win, and that you then made a deposit again.
Why would you find it suspicious?
Isn't it a smart practice you, I and many other members keep preaching about in regard to avoiding storing one's funds in a centralized or custodial service?
Deposit ETH withdraw USDT, deposit USDT withdraw ETH, deposit ETH withdraw USDT. The amounts were not like $100 or $200. It may look like using them as mixer although I don't know how risky those bets were. Casino's are not meant to be a mixer. Obviously all these are guess from us.