Three things:
1. If you are losing in gambling, around 90% or even more of gamblers are like you.
2. If you gamble because you are looking for money, quit, you will not find it there.
3. If you want to gamble with a higher probability of winning and not just guessing out of random possibilities, try sports betting. Choose matches and games which you are very familiar with.
Good luck!
The main thing here is that it was a system created to earn money, if you are looking for a sure money it will not happen here. It is just for fun and we should not take this very seriously unless you are the one who owns the gambling site because it generates a big money for sure. When we gamble expect that the owner earns money no matter what so keep this in mind.