I'm so frustrated, I've been trying to stop my habit of biting my nails.
Yes, that's a hard habit to break. Why are you now trying to break the habit?
My nails look terrible. I'm sure people are judging me when they try to shake hands with me.
Well, that's definitely a good motivation to get you to stop biting your nails. Like I said before it's a pretty bad habit to have and I hope you'll be able to kick it soon.
I hope so too, I'm really struggling to stop it.
It's a bad habit and bad habits are always tough to stop. You could talk to a therapist and see what suggestions they have for you to try. You shouldn't struggle on your own.