I'm not sure how old you are or what your current stage in growth is but usually the sunken chest will get deeper as you grow.

I know most people don't like it so if you want to get it fixed so your chest is normal it would be better to start now as the procedure is much easier for people who are still developing and what not.

Removing it at later stages requires a majority of your rib cage to be cut out.

Personally I love it, it's a cool thing to have.