how to cope with having minor disfigurements

my main minor deformities are my thumbnails, i used to bite them and tear at them due to bad nerves....and ever since they have grown back deformed in appearance, thin, cracked...half of one thumbnail is skin the other half is weak nail....and i feel quite self conscious about my hands because of this.. i was always so vain as a person..

anyone else have deformities that you live with, if so, how do you live with your deformities?