I have very soft bendy nails with a very low 'smile line' due to years of biting. Have managed to ditch the biting habit but my nails now tend to break before they even get up to the level of my fingertip. I don't really want to wear fake nails (couldn't afford the upkeep anyway) and would love to be able to grow my natural nails long enough to enjoy experimenting with different nail polishes. Any tips?