Look I've been gambling high stakes for years now and I can tell you from experience it's all random. I've had bad months and good months, the trick is to find games that have good probability on a bonus. My favorite game to sink money into is Wild falls because if you get the gold bonus you have an extremely high chance of winning 1000x+. some games just have really bad bonuses and it's not worth it to farm.
The bottom line is you will most likely lose with slots so if you don't have the money to burn you shouldn't play in the first place.
