Having been a lifetime nail biter i stopped in October, my nails were growing well but have now all broken, i developed ridges on my nails running from cuticle to tip lots of every finger my nails split along these lines, there also so soft they bend under any pressure, any the white part of nail also looks stripey because of the ridges. I use nail hardner daily and moisturise my hands around nails but no improvement. My nails bed are shortened too because of all the biting and they arent showing any signs of reattaching have i ruined them for good? any tips?