I had a spell quite a few years back were I had a sort of "system" going with roulette games machines in bookies. Idea was go in with enough money and repeat / increase your bets till you won..........
Go in with £200 come out with £300+ most days, worked real well for quite a few months, Until I blew £1k in 3 hours in 5 bookies
. (but it was winnings money)
I felt so ill and wanted to be sick, it just stopped me dead in my tracks.
Lucky if i get a lottery ticket nowadays.