Should You Open a Store Before You Leave the Marketplace?
Almost always yes, but not for the reason people give. A new store cannot be tested against an established marketplace, so measure something else.
migration timing
The Honest Case for Staying on Etsy
This site is paid when sellers leave, and this page argues against that. Four seller profiles for whom leaving now is the expensive mistake.
How Long to Replace Etsy Income With Your Own Website
No honest page can date this for you. Here is what the timeline is actually made of, and the three numbers in your own Etsy account that decide it.
Migrating From Etsy Too Early: Mistakes That Break Shops
Migrating from Etsy too early has symptoms you can check. Five tests to run in your own Etsy stats, what breaks first, and what a ready store looks like.