I was about to give up but I ended up just making a one shot build with maelle, I think I could have done it normally but it involved a bit of grinding with my unused characters which I couldn't be bothered with in the end. It still took a bit of work to get the one shot build working and it wasn't exactly one shot, had to get timing and strategy right along with rng.
I completed the game in the end, the last scenes definitley tugged at the heart strings but the logic of it all still took away for me.
Oh when I finally defeated simon and went to the last area some of the pictors that dropped or could be found would have helped a lot... I mean they were really good.