I want to create a custom formation that has a back line of CB-CDM-CB with the two fullbacks playing further up the pitch
there is a 5-2-3 in the game with that in it i believe
if not, just do a custom 4-3-3 with 1 CDM and 2 CMs and then have the CDM never attack and always defend, and have the 2 FBs always attack and medium defend. pushing your "attack" speed in-game will automatically have FBs push, also
No matter what I do the CDM plays too far up and I get destroyed on the counter.
if you play possession, you will be destroyed on the counter. barca is in real life as well
you just have to keep 70% possession like barca does