My biggest winning I think is 1200$, and my biggest lost I think is 500$. I do not bet that much unlike other gamblers but I am good with that. Take note that the amount is just an approximation and it does not include my total loss because I lost count regarding this matter. My point is that, I do gamble just to kill time and not to be rich in an instant which I think should be the midset of other gamblers who are avoiding addiction. Gambling is an addictive activity. Many lives suffered due to gambling addiction and it is simply applicable to all things, everything that is too much is not good. Always be in control of your actions especially in such activity.
There was a time when I was still addicted to gambling, I remembered that I bet a whole BTC on a sportsbook, I can't remember the odds tho but that time bitcoin were climbing to its all-time high that why I think it's one of the biggest bet and risk I did into my life. I win though maybe because of luck and the research I made.
Luck I think is the main thing behind a win to most of the gambling platforms and games being played. Analaysis do not work often, just think of those who are into gambling that much who are making deep analyses but are still ending up losing huge money.