Im 14 and want to do pointe dancing. will it give me future injuries or damage my feet?

i have been dancing since i was 3 years old and have been doing ballet ever since. I really really want to move onto pointe but i'm afraid my feet will be deformed or I will have problems when I get older. I love dancing more than anything though so should I just sacrifice to do what I love? As of right now, my feet aren;t the prettiest things ever lol but I just don't want them to get too bad. How can I prevent something bad happening or what's the worst possible thing that can happen to my feet from pointe?