I use to bite my nails. I didn't want to, but it was like a subconcious thing. But I got braces that made it hard to get good angles for biting haha. I know people that bite their nails so much that they bleed. I was never that extreme, but my nails didn't look as good as they do now. Do you bite your nails? Did you use to? How'd you stop?
I bit my nails for like a month, at which point my mum nagged me SO much and made me so paranoid that I stopped. Other than that I've never bit my nails and you can tell because my nail beds are really deep (which makes them slightly harder to paint) and my nails are really, REALLY long. *Reaches for the nail file*