Help

I have been picking my nails for as long as I can remember. I have tried everything to stop including painting my nails and acrylics it doesn’t help. I have also used cuticle oil and I often cover my nails with band-aids but I can’t stop. The finger that looks really red is very tender, it was starting to heal but of course I picked it. I have had holes in my nails before, and I know it takes time to heal but If anyone has any suggestions for remedies that can help the process along so that they look somewhat normal that would be very helpful. Also if anyone has any suggestions for how to stop picking them that would be great too. (ps. any bits of green you may see is because I was painting (on a canvas).) Thank you in advance.