Although the temporary stint in Genoa failed to work out as Samp were relegated from Serie A, the youngster showed no ill effects with his first display since returning to Manchester.
"At the start, I played and did well as well," he told MUTV when asked about the loan move. "I scored a goal but then the manager didn't choose me for the 11 starters and I had a difficult time.
"I didn't play really a lot but it's an experience, you know. I've learned a lot from that experience. It makes me a better player and a better man, the bad experience makes you grow up.
"When I came back here, the first day in training, I really realised that Manchester United is the best club in the world. When you see the other teams, you can see the difference so I'm really, really happy.
"I enjoyed it. I've been training hard and now I hope to keep going like that. I hope to score more in the coming games and the USA seems to bring love to me."