Looks like you need to CT the first game for sure and play M2M instead of your zones you have been playing, then if you win you need to try and CT your home game and do it in 2 (after training Game Shape on Friday)
It's a big ask as both of your teams don't look like you have an understanding of just how much GS management means in this game, you are lucky you are in a finals series against a guy who doesn't get it, this is not usually the case, and won't be as you progress upwards.