Help me with this formation.

[DarkWarDark]

This is my first post on this forum :c
Hi guys. I need some help with a 3-4-3 formation.
I am using 3-3-2-1-1 with: mentality defensive, focus passing thru the middle, passing style mixed,pressing style low,tackling normal,man-to-man with offside trap.
He has stronger team.
Tell me if I need to change the formation.
Thanks for reading this