I have the same issue. only I don't play guitar and can't get my nails that short. I used to play the piano and I had to clip my nails every other week...i still have to. I don't know if there are any products that make your nails grow slower...Stress sometimes does that but i don't recommend becoming stressed. I think you should accept your gorgeous nails for what they are...Oh and maybe you could use a pic for your guitar????I heard they don't work as well as your fingers. But if you are sick of trimming your nails you could try it.