I have not bitten my nails in over 20 years. Recently I just started. Not only have I bitten them down to almost nothing, I am picking at them. They are a mess. Every time I realize I'm doing it, I stop, but before I know it, I am at it again. I am now also picking at toenails. Both hand and toes are so low there is nothing to clip off, but I manage to continue to do damage to them. I don't know what to do to stop.