Keeps tearing

Every single time I have sex (or masturbate) I get a small tear on the outer part of my vagina. I go slow and I use lube every time but for some reason I always end up with the tear and it’s usually kinda painful. Does this happen to anyone else? 😭

(Edit: in response to the question about my nails)

I don’t use my fingers. I use sex toys, so it’s not because of my nails 🙃