I have no idea what is the purpose of having mentor since dice is a very simple game to understand.
How can this mentor give you steady win in dice game while dice game is a pure luck based game?
I guess OP is not going to come in this thread anymore, its been a week since he created this thread but he did not even reply any question from other users.
That mentor can only give him theory or formula if he is going to use auto but I'm sure it's a martingale again, this is the most popular method in dice and it never fades out, you cannot rely on your mentor for every bet because no way your mentor knows the exact formula on how to beat the house, your mentor is lying if he told you that he never loses a round of betting, I have never met a gambler who never loss in a dice game.