Hi

HI everyone! I use 4-3-1-2.

Orders:

team mentality: attacking
focus passing: mixed
pressing style: whole pitch
tackling style: easy
passing style: mixed
marking style: zonal
and force counterattacks

I play with blue arrows on both DC , midle MC and red arrows on AMC.

Can you give me some tips to improve? I'm at level 2.

Without a DMC you really should be using "Own Half" pressing style. "Whole Pitch" means your team must make longer, riskier passes, so not having a DMC making extra work for your defensive line.

Turn off force counter attacks as well. There are topics explaining this won't work with attacking or hard attacking mentality.

Personally I would change arrows to:
DL---DC--DC---DR
------------------
---MC--MC--MC--
-------AMC-------
------ST--ST-----