It is common for new drivers to focus too closely in front of the car. One of the times that this shows itself is when they are curb parking. The hands will always follow the eyes. Therefore, if you are looking directly AT the curb, the car will end up ON the sidewalk (if it is a rounded curb) and with the wheels wedged against the 90-degree angle curb.
Look further down the road on the approach, check the mirror, put on the signal, shoulder check and pull over, straighten out, and check the side mirror to see what your distance is from the curb. If you are still too far, dip in and straight out again. This will keep you off the sidewalks (an automatic disqualification) and with your tires and wheels in the condition that they were in before pulling over.
To prevent a crash caused by a runaway vehicle, certain safeguards are necessary when parking on a hill. In all situations except one, the wheels will be turned to the right. The one exception is when parking uphill with a 90-degree angle curb, in this case the wheels will be turned to the left.