@Nicky I think your problem is form of your players. Try to change position of your players which are constantly in bad form, that is why your results are bad. They can have even 9*, but if form is 4-5, they are completly useless. Test them on different positions in friendl match. For example if you have 2 DC's performing bad, switch their position. Play few frendlies to figure out which player performs good on certan position. My team has DC-DR (right footed) which is very good on DC (~7 rating), but very bad on DR (~5 rating)
Good Luck