I've been trying to learn guitar for about 2 years now, and everytime I try I hopelessly give up because of my fingernails on my left hand. I've tried to teach myself and even gotten professional lessons, but I can't do anything because of my nails. There naturally long, so even when I cut them down to the point of bleeding, their still too long for me to position my hand correctly. :(

Is there anything I can do, caps or something, even hints as of how to hold my hand differently?