At first, I gambled just to entertain myself, but on the other hand, I was also looking to make some money when gambling, because in each betting session I used the money I deposited, so if you keep losing, there will be a feeling of disappointment.
I did read several of your posts in this topic, and first of all sharing my sentiments with you.
With gambling there is a famous saying "The house always wins".
Gambling has been something that has been done since almost the creation of mankind. Take the colosseum in Rome for example. "People with money could bet on dice games, gladiatorial matches, chariot races, and other spectator sports." (UNRV.com)
The only difference from back then is that you had to go physically to place bets, and today it's available with a click of a button, you don't even need to drive to a casino to play, you can do it from home, or even if you're not home - using your mobile phone.
The reason there are so many businesses creating gambling websites is because the odds are stacked in their favor - so you have no way of making money from gambling, unless you have an extremely great strategy that no one has come up with, but it's extremely rare.
What can help you "make money" is bonuses, and things that give you an edge over the house - by using these things you might be able to gain something, but you still need a proper control over what you do, and to plan ahead as well.