I'm 17 and I Have Saggy 32E Breasts - Should I Get a Reduction or Lift?

It sounds like you would benefit from a breast reduction.  When a reduction is done the breasts are lifted at the same time, ie you get both at once.  Reducing your breasts so they are lighter, better shaped and more proportional to your bodys size can be very helpful in preventing future problems common with large breasts, ie  back and neck pain, bra strap grooving and fungal rashes beneath your breasts.

IT sounds as if you need BOTH a breast reduction AND a lift. This will achieve an improvement in your breast shape as well as reduce the size from an E.