Clothes are great for faking being slim or tall or short or whatever you like. If you want to look tall af my best suggestion is to snatch your waist with a highwaisted short skirt or shorts. That elongates your body in a sec. I remember I always wanted to seem shorter than I was when I was younger. Growing up being so tall is not great especially when your long arms and legs are basically floating around your body in teenage years, no head or tail. But when your body develops you learn to appreciate your body and to be as you are, wearing what you want and being who you are.