I love the smell of catfood
Why do you think you enjoy the smell of catfood so much?
The smell of catfood makes me feel that I'm in a better place
Well, if that's how it makes you feel then that's fine!  There's nothing wrong with enjoying the smell of cat food.  Do what makes you happy!
I like catfood so much, I want it to smell like catfood in my house all the time.
Haha well maybe there is a candle or something like that which can emulate the smell. I think it is great that you have a unique interest in something like cat food!