Have you thought about keeping a record of bets, monthly wins and losses, to track this?.
Is such record-keeping important to you, or do you not consider it crucial for your economy?.
This python script might be an example of how you could do it.
It's certainly an interesting idea, but I don't think that turning gambling or even betting on football into accounting can help you win more. After all, gambling is not a business for ordinary people. There may be certain statistics that would be useful to see your expenses, however, I believe that most people already know this. So I'm not one of those who keeps detailed records of their bets, and I think most people are the same as me in this regard.