Patriotism gave the colonists the will and determination to risk their lives for their country. The support of their fellow colonists encouraged them to work harder. Many colonists wanted to give their lives fighting for their freedom.
Lack of Experience
The Americans were led by an experienced and talented leader, George Washington. His decision-making skills strengthened the American army. He inspired his men and eventually led them to victory.
Shortage of Men
The countries France and Spain supported the colonies because of their hatred for the British. They aided the colonists from abroad. France provided most of their gunpowder supplies.
Most of the soldiers were not well trained enough to fight. Some didn't even know how to fire a gun. Some would even run away when faced to face with the British enemy.
The Americans had to work with a limited amount of soldiers since only some were capable and qualified. George Washington had no more than 20,000 troops. This amount was not nearly as much as what the British had.
The colonists faced periods of time when they were short of necessary supplies. This includes guns, clothing, gunpowder, and even food. Food shortages caused many soldiers to leave the force.