Ramacharaka
I guess you could argue that I'm an infantilist because I enjoy watching Yu Gi Oh, and other similar cartoons, but I don't consider myself one by any stretch of the imagination and the whole teenager using a pacifier or 24 year old wearing a diaper and other similar activities seem really disturbing to me.
Doesn't sound infantilist to me.
A simple definition of infantilism which pretty much makes you devoid:
Infantilism is the attraction to, and enjoyed use of, infantilistc items.
You sound pretty normal to me, have no fear. ^_^