There is crime everywhere in the world, especially if you start cherrypicking for examples.
Go read the news of Dubai or Singapore and you'll see murder, theft, rape, etc. But the reality is much different once you turn off the TV.
Hundreds of millions of people live in the US. The majority of the richest people of the world live in the US. 50 million people visit it for tourism every year, millions travel to study there. The vast majority of these people never run into any issues.
I also lived there for years and never had a problem. I remember that most girls walked around half naked in the summer (lots of hotties, OP should know) and those girls didn't have any issues either. Of course you'll probably give me an example of a girl that got raped or show me the story of Ted Bundy and use that as evidence that everyone is getting raped and killed and you should never go outside.
If anything, the US reports everything, and people can be very vocal on places like Twitter, but the reality is that chances of anything happening to a person living in a decent neighborhood are slim to none.
I'm not trying to convince you though, just giving here a more balanced perspective that can help OP. This is also a good Reddit thread with more realistic opinions (you'll disagree with most of them though but that's ok):