You try to come off as Mature and in command but it seems that you are little more than a Child in Adult clothing;
Age may not seem to be relevant, and in some cases it truly isn't; but as you acquire more of it, you shall bear witness to the effects of it's absence:
It is not necessary to "grow up" they way they say to, but it is necessary to become greater than you have been; Otherwise, you're infantile, at best; a Child in Adult clothing.