The student pilot reported that the purpose of the flight was to practice flight maneuvers. He recalled that upon conclusion of the maneuver practice, he made a normal approach to runway 28. He reported that during the landing flare he encountered a crosswind gust, the airplane floated, and the airplane landed hard. He recalled that after the hard landing, he was unsatisfied with his landing performance. The student pilot reported that he decided to takeoff, stayed in the pattern, landed with full flaps and more airspeed, and accomplished "a controlled, more smooth touchdown." However, when he showed up for his next flight three days later, he was informed that the airplane sustained substantial damage to the firewall. The pilot reported that there were no mechanical failures or anomalies with the airplane during his flight that would have prevented normal flight operations. The meteorological aerodrome report at the accident airport about the time of the accident indicated the wind direction was out of 270 degrees true at 9 knots, gusting to 19 knots.