Been watching alot of streams and havent played 1vs1 in half an year, but ive been playing 2vs2 and above, about a month ago,
so i decided to see how the game performs in 1vs1 again, and i won my 2 games, the problem that i had was that my unit preservation needs some serious training, since i lost few squads just by forgetting that they are being attacked while they are capping,
or opponent using rifle grenade or something to wipe half the squad and then kill it before you get back to the fight after microing stuff somewhere else,
so play games and you discover your weaknesses, and how can you improve them and learn from replays of your games
I used to have same problem. Unit preservation was a nightmare for me.
Now I simply glance at the upper bar with unit icons. If I notice that one of them is in combat, I quickly switch camera view to them to determine how to react - either immideate retreat or fighting back. Also, listen to your troops voice, you are sometimes told that things go wrong.
Keeping your army together also helps to prevent spreading attention all over the map.