is there any proven strategy to win at least $5 daily?
NO martingale rule please.
Best strategy in gambling would be not to gamble. But if you wanna go for it set chance to 94% deposit 100$ and roll once and boom you made 5$ for the day. But risk comes to loose those 100$ in just one bet. Your money your decision. Try not to gamble it.
The risk in common in all business. But we must take risk how much we can afford. So don't go for this method I am sure you will lose your money. Making 5$ Bitcoin is not a big deal but to make this choosing Gambling is wrong. We have other sources to make money from Bitcoin. Use your skills and earn money don't depend on luck games.