My nails are weak and chip/break easily. I used to bite them as a kid. I had acrylic tips for a while and have been taking a break from them but may go back to them. I like polish colors too much to have short nails.
I try to grow mine out but when they get just past my finger tips, they either break, chip, peel or I ram them into something accidentally and they get damaged in some way. I envy people who can grow thick nails with no problems.
Between medium and long because I don't play any instruments and I have to have razor sharp fingernail clippers or toe nail clippers. If I don't I have to soak them in water to clip them. Playing with boys as a kid does a number on your nails and they're really hard because of it. But they also chip to different lengths. Though I try to keep my toenails short because it hurts when I jam it. I don't bite my nails it hurts my teeth.