The airplane struck snowbanks on the left side of the runway (2,700 feet by 75 feet), after liftoff and then nosed over. The student pilot reported that on a previous flight with his instructor, they had practiced soft field takeoffs. The student reported that on this solo flight he decided to perform a soft field takeoff. He stated that during the takeoff, the nose of the airplane came up as expected. He stated that because of the limited view over the nose of the airplane, he did not realize that the airplane was drifting toward the left. He stated that once the airplane became airborne, he could see that it was heading toward the snow banks adjacent to the runway. He attempted to avoid the snow banks, but the left main landing gear hit the top of a snow bank, then the right main landing gear struck a snow bank and the airplane settled toward the ground. The airplane subsequently hit another snow bank and nosed over. The pilot stated that there were no mechanical problems with the airplane.