The Lower Half Of My Back Is Arched, Looked Into

The lower half of my back is arched, looked into it and found out it was called Lumbar Lordosis. But i also have a problem with my chest, it sticks out a very noticable amount and the right side of it is indented and the left side is sticking out! I have no clue what it is, i want help so i can find out how to get rid of it! Nether problems have caused me any pain, its just embarrassing. I am 15