Spinning on the train from Parramatta to Penrith
What to do when you have had enough for one night
The cleanest ending is the one you planned in advance, because deciding to stop while you are winning is easy and deciding to stop while you are not is the part that actually matters. Close the app or the browser tab, clear the session from your mind, and do something that does not involve a screen for ten minutes if you can. If you have set a loss limit and reached it, that is the signal to walk away rather than a challenge to try again.
You can always come back tomorrow or next week, but the point of a limit is that it gives you a reason to stop that is stronger than the urge to keep going. Treat the whole thing like a night out at the local: you know when you are ready to head home, and pushing past that point usually makes the next morning worse. The reels will still be there later, and they are not going anywhere regardless of whether you spin them tonight.