Hi all, I am learning forex right now and I am wondering how much does the market change year to year. If I create a bot that gives me 100% return over the last 12 months with very little drawdown is that good enough to implement it? I ask because I am trying to build a strategy right now but I am testing it over many years of data. What I find is some years are amazing, some are horrible, others break even. I can tweak things to get an overall positive result but then I am left with long patches of little to no growth and the great years are only Okay.
So I guess what I am asking is how much effort should I put into building a strategy that beats and market for the past 10 years? Or is it best to find what works now(past 12-6 months) and be ready to develop something new if the market changes?
Example: If you found out that for the past 6 months 85% of long trades placed at 5pm New York time turned profit would you roll with that? Or ignore it, as it didn't work 7+ months ago.