What strategy to choose?

There are so many strategies on the net. There are websites and forums dedicated to them. But don't think you could pick any strategy and start making money. Most of them don't even state what type of chart to use (day, hour, minutes) and for which currency pair that strategy for.

I'm as a programmer, looking for money making opportunities, tested many free strategies. I have written many expert advisors for Meta Trader platform and checked them on history. Even on history the results were negative. Some strategies may work for 1-2 months but then lose all deposit anyway.

Don't forget that, if everybody would use profitable strategy then it stops working. That as simple as that. No one would make profitable strategy open for everyone. Maybe it worked for some time and then stopped and developer decided to share it with traders community. He can even prove that its working based on history of profitable trades. But in future it would lose.

But I believe there are many profitable strategies. Moreover I think simpler is the better.

I'm using several simple strategies at once. It gives me good results. When one strategy goes negative and another goes positive they compensate themselves. Thats how I trade. I can have several open positions at once with different trade amounts. My expert advisor monitors positions 24 hours a day. It could open and close positions all the time while the market is open.