I'm so sorry. I am not able to file my nails any longer as it causes too much pressure on my fingers. Clipping is the only thing I can handle. Soaking your hands in warm water with baking soda helps soften the nails and nail beds to that that are much easier to clip. Especially if you tend to get thick nails or ingrown, the soaking makes a huge difference.
It is amazing the things people take for granted in life. How simple life can be for someone not in pain.
Good luck.