It is always recommended to avoid gambling under stress, as it can make things worse. Instead of relieving our stress, we will get even more frustrated when we see our losses, after which we might do things we shouldn't do, such as wanting to return a loss or chase a win.
The conditions we experience must also be considered, whether we are in a calm and comfortable state, or not. The more we force ourselves to play when we are stressed, the more likely we will lose a lot of money because we are not in good self-control.
That's why there are plenty of responsible gambling sections on all over the platforms and it is clear that when we have a bad day or session, or multiple of them in fact: we need to chill out instead of trying to avenge the house. It's a game where you cannot win no matter what you feel in that moment.
There really are no unlucky days, because gambling is all about hope. If we're unlucky at the moment, switching to another game is a good idea. I've practiced this, but I've made a profit not on soccer or slots, but on dice games.
Still boils down though as how lucky or unlucky you are. For me, it doesn't matter, if you're unlucky, whatever games you played, you are going to lose anyway. Just like when you are lucky, whatever games you touches, you just help it but by go on winning.
It's true that it's good to be able to stop playing if you've had a losing streak for the day, so you can come back the next day or the following week. However, addicted gamblers often play at multiple casinos, switching their games to other casinos to try their luck. This requires capital to deposit into multiple casinos to try and win.
Yes, that could be the best strategy by far. If you feel that you are in a losing streak, just stop and tell yourself that whatever games you play you are bound to lose. I have this kind of feeling that the casino doesn't want you to win and so just stop.