This varies. Your endo will likely start off with a monthly, then quarterly and then usually six monthly visit. You can, and should, initiate visits at any time if you experience something unexpected, are concerned, have questions. The best relationship with your endo is one where you partner with them, share your feelings, fears, objectives, emotional and physical results. As ymmv and we may have different objectives, 'need for speed' and reactions to hrt the collaboration is important and very powerful. Hrt is powerful stuff!
Safe travels
Aisla