Should I worry if I'm 12 and don't wear bras yet?

In this context "yet" really means "not yet." In other words, "it is yet to be done" means "it is not done yet."

"Still" is more properly used in that context.

Don't worry about them. If it's really bad and making you very uncomfortable at school, you could change schools, but I personally think that the best way is to ignore...

No, not really. It will not work well on the outside of clothes. Try a looser fitting long pant.

Do what you want. You don't have to do anything just because someone else does it. If you don't want to wear makeup, don't!

Calm yourself down, and find a moment when you and your mom are alone to talk about this. Just say, "Mom, I think I might need to get a real...

If you find a bra that fits nicely, you might want to buy two or three in different colors.

Yes, contact lenses are designed to correct nearsighted and longsighted people. They can be worn as needed such as during college hours.

In most cases, yes. Check with your dance studio's dress code for more information.

If your lipoma is bothering you, a general surgeon can remove it. You might be able to find a dermatologist who will remove it, but not all dermatologists offer that...