Ok I know you aren't going to like it because I hate to be treated as a "child", but put it in perispective. I'll also be very short.
Around 18 you'll arrive at a point in which two paths are likely to emege: booze, friends and sports and up and downs in happiness, or development of physical and mental attributes, but paying the price of an hardness of charachter that might render you less spontaneous (UNLESS in company of an INFp. In those moments you'll revert back to the child ).
For you to decide.
The difference in expression on the two pics says everything.