CHELSEA TACTIC PROBLEM

HEY

At first, Im not Engilshman so sorry for my English.

I have problem beacause my Chelsea play very weak. I scored very little goals and my players play ugly.
In my opinion I have fantastic team and players.

How I set my players?
And how I set team instructions and players instructions???
I never won with Man City, Arsenal, Man Utd, LIverpool..
IN Champions League I have huge problems too.

This is my team:
I bought two new players
James Ward-Prowse from Southapton
and
Samuel Umtiti



And I have next quasstion
How I play on AWAY?

My team is good so vs for example Crystal Palace I wil set my team on 'defence' ?

please reply fast