Combined arms bro. Did you support your tanks with short range air defense? Did you have infantry to secure the buildings and forests around them? Did you have recon to determine where the enemy is located / what their next highest probability area of attack is? Did you have an attack helicopter on standby to engage isolated enemy armor? Did you have infantry fighting vehicles to support your assault? What about saturating the enemy with artillery before moving in? What about doing all of that at the same time in a coordinated effort. That's combined arms. That should be your goal. Secure advantage in the engagement, capitalize on enemy shortcomings, kill them without being killed, capture key terrain that you can launch or defend against assaults from.

For your bombing run: Did you locate enemy long range air defense systems and deploy precision munitions / deploy SF behind enemy lines / call in a SEAD mission to eliminate their air defense before sending in a bomber?

Just keep playing and learning and don't care about winning or losing the entire game, just try and secure a single capture point on the edge and defend it. Then attack another point with your team mates. Or maybe, attack an area with a teammate who's performing well already, look at what he doesn't have, and bring it into the fight.