The issues most people have is that they don’t know when to stop. I have numerously seen people win a lot of money and still lose everything the same moment. I think setting a winning limit is very crucial. However, you mustn’t reach that limit to be content. So in case you’re reading this, my advice is that if you set a winning limit of let’s say $100, it’s okay to stop at $80.
Yeah, even though we are aware that we should moderate our gambling activities, be aware about bankroll management and have self-discipline and gambling responsibly, we often forget these things and ends up losing control because of the winning streak we had experience, thinking that Mr. Luck is in our side and nothing will go wrong, only to find out that we lost it all 
. I also experience this scenario where I deposit around $20 in a certain casino platform and be able to grow it to $200+. I aimed for $300 and stop but it never happened instead, I turned into a chasing winnings mode until I lost all my bankroll fund. It was a lesson for me to be contented and be aware when the slots turned into a feeding mode.
For losses, I simply stop when I lose the bankroll that I have deposited and I only deposit a moderate amount that I wouldn't worry about even if I lose it all, and for wins, I stop when I feel that I have got enough profit for the day instead of thinking that I might be able to get some more if I keep playing because I know that's a death trap.