u might have not optimized enough, how often were you optimizing the expert?

If I was trading an MA cross expert i would optimize every day. no matter what time frame.

If u want to learn more about optimization i recommend u read the AI Expert threads.

Also the most important thing is for you to test and retest optimizations and settings on your own. Dont follow what someone else says.
doing it is the only way to learn.

im sorry for your loss david I recently had some big loses too it sucks huh.