Advice for a single woman moving to SF alone?

Hi all! I recently received a job offer in the South Financial District that would require me to relocate from my state. I've been doing research in places to live, like Nob Hill, Hayes Valley, Pacific Heights, and Haight Ashbury. I'm open to other neighborhoods as well! My budget for rent is $2,300, and solo. I'm considering the commute to work (Perhaps the BART?) or buying a car. However, I heard parking in the financial district is $30 a day plus paying for a spot at your apt :(. I'm nervous to move to SF alone, especially because my parents are telling me how incredibly dangerous it is there. I'd be working long hours at work, and they said traveling home past 7 PM is like a death sentence. I'd appreciate any help on where I should live or other insight on the overall experience!

Edit: hi! Please don't DM me for nudes. I do not/will not ever offer that.