27?

I have recently turned 27 and I am HATING that number.  I told many people I am going to be 26 just one more year and then I'll give 27 another try.  So since I am picking my own age I thought I would be 18 again and I didn't like that, I don't want to be a teenager EVER again.  21 even sounds too young.  When I turned 24 I didn't realize it until I was 24.5 and that was scary I was driving (I could have been killed).  26 is a good number for me for now but I am scared that when 28 gets here I still won't be ready so I better get used to this 27 stuff before this year is gone too.  I need more time for everything why does it have to go so fast.