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I agree though as what others have said, discipline is very important. So just stick to your budget as well and not go overboard with it.
That's a point that needs to be noted, because he feels that his team will continue to win and raise the bet beyond the limit he has,
even the amount of money used is still less, this is more like being too greedy before the victory happens because he wants to force a bigger bet.
And he asked for advice on the bets he was going to make, I don't think any advice would be the way out.
You just need to improve your mindset about how much profit you will make and bet with enough money.