OP has clearly mentioned that he does make a profit at gambling sites but that profit is being taken back by the gambling sites. This means that he wins some games and loses some and therefore makes almost no income from gambling.
So my sincere advice to OP is that he should avoid the casino and even if he wants to gamble, do not make targets that he has to earn 100$ daily. Even earning 100$ from trading is not possible. i do not understand why people think that earning money through cryptocurrencies is so easy

What are the biggest take one can ever think of his making a plan of of getting a particular amount of money in gambling. Gambling is not trading, even in Trading it is not even possible for one to always hits the target of profit. The way OP has much confidence in making profits from gambling is bad and can lead one of astray.