Snakes strike for two reasons: they're hungry, or they're afraid. A bite/wrap is a hunger response, a strike and retreat is a defensive response. It sounds like your snake still hasn't figured out that Godzilla (you) isn't going to eat him.

Very short initial handling sessions are key to getting him chilled out. Pick him up, hold him for a few seconds, and if he's not striking then put him back. Repeat daily except for feeding day and for two days afterward, to give him time to digest.

If he does strike then gently hold him until he's behaving, then immediately put him away. If you put him away when he strikes out then he'll learn that striking gets him what he wants, which is not the lesson you want to teach.

Eventually he will chill out but what you're seeing is typical behavior for a baby snake.