Everyone is a fan of something.
Whether your idol is an Olympic athlete, Oscar winning actress, or even a fictional character, it's normally a positive thing to have inspiration and motivation come from a hero of yours, particularly if you're using that hero's words to spread messages of confidence and love.
A lot of people get made fun of for being "obsessed" with whatever they're inspired by, but honestly, if you're not hurting anyone, why does it matter what gets you out of bed in the morning? Again, everyone's got their own thing, and just because yours isn't like someone else's doesn't make yours or there's any less valid.