If i make a new account on xbox live do i lose my gamer tag game saves or my downloads i paid for ?

when i made my xbox live account i put in the wrong date of birth so now i am on a child's account if i create a new account will i still have my gamer tag and gamerscore and will i still have my game saves and downloadable content that i have bought ?If i make a new account on xbox live do i lose my gamer tag game saves or my downloads i paid for ?You can delete your account to get the same gamertag but you would not keep downloads, gamerscore, or microsoft points...so itll be all down the tubes