I have a tip for the tunnel vision. Try moving around Party Character Box to maybe the right of the enemy health bar so you can focus on the monster, field and team without having to draw to much attention away from the battlefield. Try to also just train yourself with mainly focusing on the battlefield and checking the party box every few seconds, soon enough you will come to look at the entire field without feeling lost in one thing. Or just position yourself further back than everyone else, sounds simple but pulling the emity gets in the way sometimes if you have a problem with that.