well good thing you said to not take this advice because it’s not really good.

1. Don’t use crypto mixers, a lot of them are scams and their usefullness is up to debate -> instead use monero, the actual private crypto that is used throughout darknet.
2. Don’t use VPNs to be anonymous. VPN are useful for a few things: torrenting, browsing on a public wifi and bypassing georestrictions. they are not useful if you want to be anonymous! To be anonymous, use TOR (or i2p) 3.the VM advice is good. alternatively you could use TailsOS which is more user friendly.
3. Don’t. Especially if you need to ask how to do it first.