Let's discuss long-term profitable gambling strategies, as well as the elements of such strategies. It is not even necessary to back it up with winning statistics (although no one will mind). It is enough to write that “I think that this strategy is profitable in such and such a game or in such and such a form of gambling.”
Elements of profitable strategies are also quite interesting for discussion. I know that for long-term profitability, risk management is of course much more important. However, what is equally important is what leads to profit in addition to risk management.
If your profitable strategy is of a proprietary nature, if it is secret and you do not want to write about it, then you can limit yourself to general reasoning. I think that this discussion will be useful for everyone and perhaps it will prompt some of their own promising ideas.
I don't know what you actually mean by profitable strategy sharing in a sense than to engage each game as they are. Follow their principles of betting and use your wisdom/instincts as you bet them and rely on luck as many would say. Of course, one will need to know how to play their preferred game, and it is easy when one is acquainted with it, and over time, such will master the game very well. Besides, the issue I see here is not even about the profitable strategy and I do not think that any betting strategy is so profitable and timeproof all the time, but it might be somewhat reliable, but still, I only hear that in casinos from the people that I would call fake or that were just fortunate momentarily for their good results if they are indeed real. I have never seen proof of that consistency, so we should be careful of what we ask for or think towards gambling. However, a good management in gambling is key, it might help the person to limit the risk exposure and continue to try their luck until they probably win big even as they continue to have their fun.
Talking about risk management, using 10% of your total deposit for a bet is wise to me, and some might even want to limit it to 5% or lower to make the risk even better. With this, you have fun with gambling and when you are lucky, you might still at times make more than 10 times of what you wagered which will replenish your account itself and keep wagering going on like that until you are lucky enough to win more money consistently. However, know your time to begin betting and know your time to quit betting, it is never by force to keep depending on the betting and wasting money in the name of risking less per trade. Before you know it, it would have accumulated big.