Though slightly off-topic, I created the aptly title thread After Chipmixer, Is Sinbad.io Next To Be Shutdown? around six months before it actually happened. I knew it was merely a matter of time because the same money launderer behind Blender moved at least $22 million to Sinbad when he started it.

I am sorry to read about what happened to you.

It has been said many times and should be reiterated here, you really have to carry out due-dilligence whenever sending funds to any website (exchange, mixer, online shop, etc) because they might be using their services as a front in order to scam others.

You should have tried Wasabi Wallet