Do realize though that evolutionary algorithms are used to find optimal parameters for an algorithm. It basically achieves the same results as brute forcing, mostly just a little worse, but much faster. That's the only thing evolutionary (genetic) ...

Expert Advisor Strategy

You could just be selling to yourself...

Hedging

You could see it as a new trade, with a better Risk:Reward ratio, but if you do so, you'll have to rate your initial trades lower, as any trade that makes >50 pips profit is closed and reopened.

About to go live, need some input to fine-tune my Money Management

See the MQL manual on file handling, functions are (I think) fopen, fwrite and fclose.

Recording P/L and margin used