Yeah I'm having trouble too lol
I kinda have a method figured out??
My party consists of a Scout, Medic, Guardian, and Fighter. My Scout is level 2 and has the "Call To Action" skill which adds an extra dice to all of the rolls for the next turn. This has REALLY helped since my Medic only has 2 dice for attacking, so I usually just tuck her in a corner and use Block to keep her safe while my Guardian and Fighter spam attacks. It's gone okay for the most part, but I still feel like I miss a lot or that battles take a long time lol
But perhaps give this method a try?? Hopefully you will find it acceptably efficient as I have.