is there any proven strategy to win at least $5 daily?
NO martingale rule please.
And for the games that are not depending on luck, you can do a strategy into it by simply applying analysis because most of the gamblers are loving that way. I suggest also that when you are going to play to gambling games that are depending on luck, don't use all your bankroll and don't bet what you afford to lose, bet a little by little.
No, not all gambling are just simply depending on luck. If you know poker and sports betting, it's totally a different format of gambling game. Though you need still need luck in able to win but most of the time with those games, you need analysis and proper timing to apply in able to win, especially in sports betting while in poker, observation is a must.