well if you had to read that sentence twice to understand that he said theres a difference between being immature and being experienced... then i suggest going back to 3rd grade english
What does immaturity have to do with experience, I've got more than twice your experience but I'm having way too much fun in my second childhoodto be mature now!
do u really care about a persons age? I'm 23 going on 43. old is in your mind, If you remember this u will be fine.