I'd rather say have a bold personality, and be a bit loud and dominant rather than change anything physically and if you really wanna change physically there are alot of exercises to become tall and I assume ur 15ish so ur still growing dw twin, when I was like 15 suddenly grew like from 5'7 to 5'11 in span of like 1.5 year so you can too, don't be sad or lose hope, u look so goood queen love you bro