Help! How do I strengthen nails now I've finally stopped biting them?

[rainingeveryday]

I am a lifelong nail biter and I really need to stop. I have managed to stop biting them for a week and already they look very slightly better.

My nails, or what's left of them, have a very short nail bed and are very soft. I need to strengthen them and encourage growth if it's possible.

I have been trying to research what to do but am a bit bewildered. (I have never bought nail products before). Do I need to mositurise them or harden them or both? Can anyone suggest any products that won't break the bank?

My nails have been transformed by Osika MSM supplements. Yes they are expensive and it was a surprise outcome however for me and my nails its been quite life changing.

Nail oil, dry nails are weak cracked nails. Don't wear nail varnish until they are sorted out it strips them of their natural oils.