THE PILOT REPORTED THAT, ON HIS THIRD PRACTICE LANDING, HE BOUNCED TWICE AND ATTEMPTED TO GO AROUND. HE STATED THAT HE APPLIED TOO MUCH RUDDER, LOST DIRECTIONAL CONTROL, AND COULD NOT KEEP THE AIRCRAFT AIRBORNE WITH FLAPS EXTENDED. THE AIRCRAFT SWERVED TO THE RIGHT AND CRASHED INTO A CREEK ADJACENT TO THE RUNWAY.