Easy money hints:
-Have some ants go to enemy base and kill the enemies except for the base. When it spawns enemies, kill them. When you have enough money, destroy the base.
-Sell soldiers that are about to die to get back most of the money.
Easy kills hint:
Build some turrets and get one soldier to lure some of the enemy army to the turrets.
Avoiding shots:
-Move the screen when the enemy fires to evade the shots.
-When you send your soldiers and the enemy fires, press W or S when the shot is coming.