"
I have never played any kinds of casino games such as roulette, black jack etc. It is mathematically impossible to have positive expected value over time. The only game that I've played was poker, mostly Texas Holdem cuz it's a game where you can have edge on your opponents if you have mathematics and theory of probabilities knowledge
Most of the people in gambling games like to play poker when they first time play gambling because they find it a little bit easy game than other gambling games. I don’t deny your thinking because you have experienced this thing that’s why you are saying this but still luck is more important than these strategies because it is a gambling game though.
It is easy to start playing Texas Holdem because rules are not complicated. However, it's not easy to start beating opponents on a regular basis, especially experienced opponents. If you are more experienced player than your opponent, the results in shorts sessions (like 50-100 hands played) might be very dispersive. However, the longer the session is, the higher is the chance for you to live up to potential. Therefore, if you would play long enough, for example 3000-5000 hands, then you have way more than 50% to be winning. And 3000-5000 hands is not that many, because you often play a lot of tables online. Personally I preferred to play 4 fast tables which is equal to 16 regular tables and as a result I've played ~ 900-1100 hands per hour"