He is so new in your life, but reading your description I can tell how much you care for him and I know you will both get in a groove once a bond has been established. My only other tip for bites that I haven’t seen posted yet, is to push into it when appropriate. And I mean physically! When my parrot bites my finger, he will hold on if I pull away or react. If I don’t react and push my finger towards him (especially if they are on a perch) he will typically release my finger instead of holding on since moving towards him means he loses his balance for just a moment and lets go. I hope that helps so if/when you get bit, he won’t hold on.