No, you are playing ilegal formation, read the guides.

Always 3 defenders, one DMC or MC, always GK, always at least one ST, one player in each flank but not more then 2, at lea 4 players in the oponent half.
If you do not respect one of this rules you are penalize its 20% possession.

For someone on level 3 should already know this, it is the basic in this game.