I'm a Loser

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I tried Poker - busted.
I tried Black Jack - busted.
I tried Roulette - made MUCH Profit but lost it at Poker, and i fear to rebuild my BR (The Software knows my System now, so its harder to win).
I tried ("not 100%") Backgammon - busted.

And i know if i try Sports Betting i will lose again.

I don't really care about the money, it doesn't hurd me, what i really wan't is to make 100$ - 150$ per day.
But i think there are people who can do this, and there are people -like me- who can not (they are just too dumb).

I've never read any Book about Poker (played FL), i thought all the Time "just play suited connectors, high pairs, play only when you hit the flop or you have a draw".
I don't know if i like Poker, sometimes i do sometimes i don't, i think its just Business.

I think it will be ever a dream to have a nice second income with Gambling, there is no way to do it (for me), or have anybody some tips for me?