When I was training in college, this happened to me, so I just kept OPI Nail Envy on them and applied that every other day, take off after 7 days and start again, and cuticle oiled religiously. When your nails are thin they are going to be more sensitive so it's best to keep any gel/acrylic etc off them. But I think it's great to keep something on them so yeah go for a nail strengthener. And oil oil oil. At your cuticles and your hyponychium x