You have tried everything possible already, so there’s not much more you could have done to throw away a match.
1% player could be trained with role or SA, hence stats remain low (need them to solve the role & SA special sponsor tasks); and formation-wise you could try to play only 2 defenders, with DC at DR/DMC corner and DL at ML region close to touchline, with a 2-1-5-2 formation with DMC pushed up and AMC pulled back with arrows the opposite way as it should be. Tanking formation can still spread around players but 8 midfielders with wrong arrows should be even worse.