This is great, except the line "you are my destiny" which is kind of hacky. You've got that whole plain-spoken, simple-words-without-being-cheesy thing going on which is kind of the ultimate sweet-spot for songs like this - it's a tightrope and you walked it, so nice one! Except that *one* line which strays into cliche - gotta be plenty of other rhymes for "me".
I do think this would be great as an opening too, it'd grab people.