Hernandez signed a new five-year contract at United last month after impressing for the club in his first season at Old Trafford.
He told Inside United: “It was about three years ago and I had a lot of questions about whether or not this was the path God wanted me to follow.
“I wasn’t playing much football, I was being kept in the reserves. I was disappointed younger players were coming through and getting ahead of me, and it really got me down, even away from football.
“I talked a lot with my parents, my grandparents, my sister and my girlfriend about my situation, and they helped me realise that this is what I was meant to do.
“I know now that I’m a very lucky guy and I’m glad I made the decision to keep playing. That experience taught me a lot.”
