Visiting Istanbul alone as a woman

Hello!

I just booked my airbnb and everything for 2 nights in Istanbul in Sultanhamet.

I realized that to get to my airbnb i do have to walk almost 30 minutes around 11pm.
How safe it actually is during that time for me to take some metro and walk around the city? since i'll be alone

I have never been to Turkey myself, i've just heard stories from my (girl)friends about how they've gotten harrased in the daylight by men. So because of those stories i am a bit cautious.

Update: I know this has been asked before etc. But i get so mixed reviews.

Update 2: Thank you all so so sooo much for the replies. When i made the post i thought that i'll be getting just couple of answers, definetly didn't think this would get so many responses.

I got so many good tips from you in the comments as well as in the messages so really thank you so much!

As most of you said, I will be using a taxy (uber) to get around and i will find a new airbnb too in different area.