Full size or queen size bed for a 5'7 height?

I'm 15 and taller for my age than most girls. I currently have a full sized bed but in a comfortable position for my BODY my feet hang off a few inches and it kind of bugs me. My bed is only about two years old so I guess it's not particularly the time to upgrade to a queen but my height shot up in the last year and when I have friends sleep over there never seems to be enough room for both of us to be comfortable. I'm just wondering if it's worth it to get a bigger bed so soon?