If you need my advice, then you should use 4 5 1 V .
you have the needed players to play with it ... it very balanced formation in both attack and defense.
Your current formation is too much defensive and midfielder and if you wanted to bring more trophies to you trophy room then you should use attacking formation to win as possible
Generally I see that you can do it and won the league trophy if you used attacking formation because you always come 2nd in your league and this means that you are good competitor but need some risk and courage
