End of the Month - Review of September Trades

Trading, it’s not just about entering and closing trades. It’s also about preparing for trading.
It’s nearly the end of the month and I’ll be using this weekend to review my trades.
I shall be looking at the following:
Are my losing trades “good drawdown”. Was I following my system?
If not this can be called bad drawdown and down to stupidity and not following my system.
As my winners I am aware some were closed early and I need to review if I was following my system.
I shall review my trade record keeping and see if any improvements can be made.