The England captain believes in the importance of pushing himself hard, no matter what the circumstances, and thinks the lessons he's learned can be applied to any career.
He told World Soccer magazine: "Whenever I'm talking to young people growing up who want to be successful – not just in football but in life – there are two things I tell them that helped me get to where I am now.
"One is being willing to work harder than anyone else, being willing to work behind the scenes where no one is watching, when it's raining, when it's tough, when you feel like there is no reward – those are the moments that build the resilience inside you.
"The other thing is belief. You must have self-belief because if you don't believe in yourself, not many others will – your teammates or your coaches – so you have to have that from a young age and believe that you can go on and do what you want to do.
"I think those two things are the cement which got me to where I am now."
While Harry has had former Bayern Munich striker's 41 goals in a season record on his mind, he insisted it isn't his driving force through the season.
He said: "That was an unbelievable record. I t was spoken about a lot last season and it was hard to keep it out of my mind when I was asked about it after every game.
"At this stage of the season, it's not something I'm thinking about now.
"For now, it's just going game-by-game and scoring goals to help the team win matches.
"I like to set myself short-term targets, weekly and monthly, to get to certain points to help the team.
"If we were in April and we were close enough, then it would be something I'd like to achieve but for now my focus is just on the short term."