I just need to let something out..

My daughter is 2 yrs old and we went to the dentist.. and she needed 4 crowns On her 4 front teeth ( due to poor enamel ) and She has to have them on until 6-7 basically until they fall off.. I feel so bad about it ..thinking about all the teasing she’ll have to go through until then.. I feel like I’ve failed as a mom.. I asked if they had other colors besides silver the dentist told me no. And I come to find out now that there are white ones and it makes me even more mad now I’m not sure what to do or if she can get them changed in the future..I feel so stressed . I know she may not notice them now but she will sooner or later and it makes me so sad...