I tried for the very first time to clip claws myself. I was very nervous but it really looked fairly easy. I got the only clippers that were available at a pet store chain, but when I clipped they were worse than before! The cuts were very ragged (is that a word?). I suppose I should file them but the vet never has to. Can someone recommend some good clippers or do you think I'm probably not doing it correctly? Is there a trick?