Keeping a Separate Tor Identity
A Tor identity is the set of cookies and history a profile carries. If you browse your normal sites and the darknet in the same identity, the two are linked in that profile, and a link is a leak. Keeping a dedicated identity for the market is the single habit that prevents the most common exposure, and it takes one restart to set up.
Why separation matters
Within one identity, the browser remembers that you visited site A and then the market. That sequence is a correlation, and correlations are how an anonymity story falls apart. A dedicated identity for the market means the market has no connection to anything else you do, because it is a fresh, isolated profile.
How to set it up
Create a new Tor Browser profile, or use a new identity, and use it only for the market. Do not log into personal accounts in it, do not download your normal files, and do not visit your everyday sites. The discipline is the protection. The profile is only as clean as the habit that keeps it separate.
The mistakes that merge them
Logging into a personal email in the market profile. Downloading a file and opening it in your normal browser. Using the same password in both. Each one ties the two identities together and undoes the separation. Keep the market profile for the market, and the rest of your life stays out of it.