tell me that this world is worth living

I believe in living, but I'm aware of a wild array of opinions and philosophies regarding the value of life. Ending one's life terminates one's participation in the discussion, not to mention enjoying coffee in the morning and looking at pictures of puppies.

that not everyone a total asshole

I believe, even in New York, decent, caring people can be found. You may not have encountered any of them yet. Seek, and you may find.

As a student (yes?), you have some access to counseling services. Are they any help?