I cannot grow up....

No, I don't mean that I cannot grow up as in I don't want to grow up. I mean that I really cannot grow up as in I feel that my personality does not fit my age... In another 5 months (oh well, lots of time) I'll step into the socially constructed age of 'adulthood'. I don't think I can handle that. I am quite serious. Although it just nothing but a mere way of thinking, I still feel as if there are certain obligations that an one should fulfill... I realise that I do not know a lot of things... With age comes wisdom... Haha.. I do not even have wisdom tooth. (Shall not add the word 'yet') Where on earth should I find wisdom?

How ignorant am I.