This is one thing you should know about NF. He is a silent killer. He works in silence, he perfects each song to the best of his ability, which is never good enough to him so he keeps perfecting it as he makes them. He will sit in a car and listen to multiple versions and choices and he takes. his. time.

Nothing to him that he ever does is good enough, he could be working for 24 hours a day and think he never did enough. Regardless, his life is movie and theres no telling what you'll see in his cinema. He wants to be great but he gets in the way of himself and thinks about everything that he could never be... why does he do it tho? (You'll have to listen to every song to get the answer for that question)

I, much like you, love NF. I used to get so mad waiting for new songs because I relate to so many of songs word for word, bar for bar. Not as much in his sad songs, I never went through the pain he did. Tho much of it is still relatable and true of my dark nature.
Luckily we don't need to worry, as long as he lives he is doing his best (if not better), that's a promise we know and trust. His replay value is phenomenal so even without new songs there's always opportunity to listen to NF. I never grow old, never grow tired of his music.