It is best to just buy one of the anonymous altcoins on the exchange, make a transfer operation between wallets and withdraw it again through an exchange, an exchanger for fiat and others.
Yes, of course, the percentage will be lost, this will give full confidence that everything is anonymous.
Personally, I use for myself an anonymous project with high liquidity. I do this. I sell bitcoin and buy
Alias (
https://alias.cash/) - then I transfer
Alias (
https://alias.cash/) to my wallet, there I do a full hidden operation and then withdraw wherever I want.
If you use
Alias (
https://alias.cash/), you will forever forget about being followed. Just use
Alias (
https://alias.cash/) and you will be happy.
https://bitcointalk.org/index.php?topic=4434053.0 - Read about anonymity and advantages, and you will understand that this is what you need!