Most horses / ponies will be able to carry you, so the issues become 1. what you are comfortable with, 2. how much you are still going to grow, 3. how long you plan to keep the horse, 4. how high do you want to jump and 5. do you want a horse or a pony? They do have different attitudes and different needs for sure.
Except for small kids, I don't understand getting anything under 14 hands, but lots of people do and they just love their small mounts. Don't let what you "look like" be an issue unless you are showing. Your comfort, happiness and future are more important - for you and your new horse.