When is a good time to cash out?

Hello all,

I'm still very much a rookie when it comes to gambling, and so I turn to you who are a bit more experienced within the area!To give context to why I wonder, I did a 50 euro deposit, with eyes on Magic Mirror. I accidentally bet 5 euros instead of 0.5, get a first spin bonus(!), with getting 110 euros as the win, which is pretty damn good in my eyes. Usually I'd cash out immediately, though I was thinking about all the other people who keeps going and somehow wins more, so I wanted to try. All in all, I lost all the earnings and my 50 euro deposit, due to me continuing the gambling.
In the off chance that you may worry about me becoming a degenerate, I've limited my deposits to 50 euros a week, money that I can afford to lose.When do you consider to be a good time to say "This is a good win, I'll take it" and just stop?

Please help.

I did not find the right solution from the internet.

References:-

Thanks

Hey John, that was an fantastic luck to win 110 euros and you should have cashed out next minute. My suggestion, if you really wan't to earn money on gambling - you need to go in sports betting or poker, but if it's just for fun and you have a limit of 50 euros a week, then you can look for interesting games, learn new strategies, etc. I found an interesting c*ck fighting game -

This is really fantastic luck, you are very lucky.