In 78 seasons Ive chenged 4 times of main formation -last time this season-.

All is, in any foarmation, about contribution. So if you want better suggestions about how to improve show us your team pàge with the stats where is the whole team (goals, assists, MoM...)

Then all is about discard players and maybe try to improve 3-4 main players + something else.
All formations can win all, you only need to find the right players.