fingernails are giving me trouble now too

I used to always tear my fingernails down as far as I could, mainly so I could play guitar and bass without trouble. But then I decided to let them grow out just to see what lovely feminine nails looked like. Today though, I had to trim them back because they keep catching on things and scratching me without me even noticing. My left hand has two marks where I somehow managed to scratch myself in my sleep or while distracted; there are various scratches all over my arms too. I’m sure more will turn up elsewhere sooner rather than later. It seems I have this habit of constantly touching everything, which means nice nails just aren’t really meant for me.