Many people even don't care about this, only playing gambling as they like, and yeah, running their life, being addicted, and also greedy enough in gambling.
But, I personally also don't have that kind of mentor. However, many members here told their experiences and advice about gambling likely "don't gamble if you cannot control yourself". Yeah, self-control is really important in gambling.
Of course, those who are gambling much money commonly need mentors for gambling.
However, it doesn't mean that mentor is only for those people. Whoever the gamblers, however the amount, if they have mentors, it maybe better enough, moreover the new gamblers.