The most adictive gambling are te progressive slots, it's basically all I play lately if I want to gamble some extra BTC money that I may have and I don't plan to hold or invest. You start with a little bit and go on a rollercoaster with ups and downs, sometimes I was up 1 BTC from 0.1 BTC but ended up with 0 because I was too greedy.
yeha gambling can change your gambling goal, before maybe you'll play to have fun with small bets. but over time. you will be playing with the big amounts and then losing