Parallel parking:

 

Pull up next to the car in front of the space, as close as you can (about 1 or 2 feet.)  Stop when your car's rear axle is aligned with the other car's rear bumper.  Turn the steering wheel toward the curb one (1) full revolution and hold it in place.  Then slowly back into the space until your car's front bumper clears the other car's rear bumper with room to swing toward the curb.  Stop.  Turn the steering wheel away from the curb two (2) full revolutions and hold it in place.  Then continue backing into the space.

Love yourself with all the passion that you can muster.  Focus all your feelings on that love, i.e., don't give feeling to anything else.

Your nervousness comes from uncertainty.  Uncertainty comes from your unwillingness to exert your will onto the situation.  Your will is feeble and tentative.  Why?  Shouldering yourself, i.e., taking responsibility for yourself is kind of scary.

Thus, love yourself to the point that you're no longer scared.

 

(There is benefit in scaring oneself, one doesn't have to do as much.)