Is it considered safe for a young Scandinavian girl to live and venture alone in the Harlem area?

Hi all experienced New-Yorkers,

I'm a young scandinavian girl who will be travelling solo to New York in September, staying 4 nights.
When surching for a place to stay, I've found several reasonably priced appartments/hostels in the Harlem area. However, I've read several guest reviews, both positive and negative, first of all related to safety and so on, in this area, especially if you are a young girl out venturing by yourself.
I myself know very little about the life in New York city, and which areas to perhaps try to avoid compared to others, and I must say that reading so many different reviews and experiences, hasn't helped me all that much to figure out where not to live, but made me more unsure...
In general, I'm a confident young girl, who knows whom to avoid and not, though, I still must say that I'm a little bit concerned and more observative about my whereabouts when travelling alone.

So, I was hoping that maybe someone with more experience and familiar with the city, perhaps could give me some helpful advice? :)

Cheers!