If you have a hubcap, remove it by using the flat end of the wrench.
Loosen the nuts on the wheels: Use the wrench and place it on the nut so that it is roughly parallel with the ground and pointing to the left. Turn the wrench counterclockwise to loosen the lug nut. (Tip: stand on the wrench to loosen it. You might even have to jump on it. A great way to take out your anger.)