i have this really bad habit where i rip my nails... like when they're really long, i take one edge and i rip it to the other side.. you know when sometimes the edge of your nail gets caught on something and so there's a tiny bit of your nail that starts getting caught of everything? well instead of trimming it like a normal person, I just take it and rip it to the other side. it doesn't go down or anything and it's not painful, it's just weird. how can i break that habit?