Yup, if we will care more about our money there are many things that can be resolved and can be avoided, especially if you are into gambling, limiting your budget and making sure that you are in-line with the strategy that you are using, it will allow you to prevent making mistakes, though not everytime but if you keep practicing it then you'll be more familiar and your focus will guide you stopping in the right time and right position.
You do not even necessarily need to follow any particular strategy. The most important thing to avoid trouble in gambling is to set a strict gaming budget and make sure you never exceed it. I believe this alone can save you from many problems. As for strategies, there are different types of players, some just pick a winner without any strategy or sequence, and I think this is a secondary factor. The main thing is risk management and proper control of your bankroll and everything will be fine.
I agree with you that, If a gambler maintain his financial limitations and self-control, everything will be fine, the only reason why gamblers face big losses is their emotions and greed, Because as a result of these things he cannot calm himself down, that is, they cannot accept defeat. But gambling is a place where there will be losses for sure, That is, if we consider both sides, First, You will definitely lose at gambling And secondly, if you can't accept that loss, you will easily exceed your limitations, then you will easily exceed your limitations, as a result, your losses will easily be huge but you will never be able to recover the previous losses. This is why it is necessary to be responsible, there will be losses in gambling, losses can never be ignored, so if you cannot accept these losses, gambling is not for you.