My strategy is not to exceed the loss threshold in gambling by making a maximum deposit of 20% of my savings to enjoy the game, and when the balance runs out I must stop so it doesn't have a big impact on my finances.
20% of savings is already big imho That's a huge part of savings for someone supporting their family, but the word "savings" is what caught my attention here, see, not "earnings", but "savings". I think it means the guy is living with his parents, saving little by little from what he's getting for small expenses. I may be wrong of course, but then the guy must reconsider his budgeting. Spending 20% on gambling is unacceptably a lot.