A very helpful tip about any personal statement: make sure it actually tells your story. These things are typically read by AdComs, however briefly, but there is also an opinion that 'they all sound the same'.
It is very rare for someone's PS to get them an interview. It can help, but it won't be THE deciding factor. So with that being said, don't focus on making your PS all unique and such. Just tell the truth, your story, your inspirations, and your dreams. Don't embellish. Don't make things up. Certainly don't lie.
Another crucial thing to incorporate is more structural. I say crucial because it adds so much for the reader it is too great to leave out. It keeps them reading because there is an element of suspense. Have a sort of "past-present-future" flow to your PS. For past talk about what in your younger years brought you to medicine. For present, talk about where you are now and what your realizations or thoughts have been in undergrad. For future, talk about your vision and goals as a doctor (education, patient care, research, and even things outside your career)...but make sure these dreams are feasible. For example, don't say "I want to be Chief of Medicine at NYU". Not to say this can't be done. I mean someone has to do it. But reading this might come off as unrealistic or disingenuous, as if you're just writing what they want to read. The way you introduce this structure and to keep them reading is to, in your intro paragraph, somehow outline that you'll be addressing the past/present/future of your medical journey.
best of luck