Transparent outline of tooth?

the sides and bottom of each of my teeth are seethrough. i know this is because of enamel, and from eating sugary food and drinking fizzy drinks. my teeth look so thin, and i feel really bad about myself. is there anyway in the world that i can get rid of the transparent part of my teeth, and thicken my teeth? correct me if im wrong, but i know you can just grow your tooth back. but is there anyway to mask it? or anything. i dont care, i just want to improve my teeth as much as possible. i had the worst childhood you could ever imagine and whilst i were a child i never used to brush my teeth. not ever. i only started as a teenager, when things got better for me. and because of it, my teeth are damaged. but what i hate most is that they are naturally perfectly straight, and a good size, so they had an amazing potential - how can i make them look better? i'll do anything.