lol, a week in, that would be the treants? Send in the archers and keep them out of range, those monsters move slow. You should bee able to wipe them out with archers without taking a single hit.
That would work...IF you only face treants. But it's far more likely your archers will be wiped out by the surrounding units before they will be able to take down even a single unit.
This was exactly why I started my account on the belgian server: to see if one could play without diamonds and what problems a new player faces. first you're encouraged to scout, then get wiped out and blamed on top of that.
I'm not surprised he quit. Several friends of mine whom I invited to the game faced exactly the same problems and quit as well.