The solo student pilot reported that he was attempting to make a full stop landing. He attempted to land twice before, but bounced both landing attempts, and ultimately executed go-arounds each time. He reported that during the third attempted landing, he bounced the landing and attempted another go-around, but "could not recover." The airplane veered off the left side of the runway and impacted a distance marker, a stop sign, and a pile of rocks, which resulted in substantial damage to the wings.