I think this is a very important point to make in mind if every time you decide to gamble a little bit, that amount of money you deposit in casino you should consider it as buying something and not an investment. When you buy something you know for sure you should pay for it and you totally okay with buying that thing.
The same way when you gamble, make sure you have enough money for other stuff and not spending all your money on one thing which is gambling. There’s a higher chance that you will lose some or most of that money while gambling but make sure that you have fun and spend good time enjoying whatever you playing and i personally i like slots.
And if you think that you gamble to earn or make money than it’s a big warning for you to not do at all!