I will do a forehead lift surgery... And I have Few Questions ..

First .. I have a droopy forehead And I Decided To Do The Forehead Lift Surgery.. First Question Is.. My Age Is 15 ( Well Nearly ) But I WANTED to ask If I had This Surgery Will It Effect My Future If I Do It At This Young Age And How It Will Effect Me? Second Question is.. I I Had My Forehead Lifted Would It Ever Fall And Get Back Droopy Again And Can I Frown my eyebrows If I had this surgery.. And The Last Question Is... What Does It Feel Like To Get Your Forehead Lifted ( Does It Hurt? )