I think it depends on where in the US you are. I went to a state school in New England, and they had an entire office for mental disabilities, including depression, bipolar, etc. Not just learning disabilities. They were very helpful. My therapist or pdoc would send them letters, and in turn, they would contact my professors with the accommodations I needed. They also would have me meet with them a few times during the semester to see how I was doing and if I needed any changes.

Now I'm taking classes at a school in the midwest, and I'm finding they aren't quite there yet with mental health accommodations. I don't know if I actually went and talked to someone if they'd be able to help me out more since I"ve only looked online. But I have found that my professors have all been very helpful. I let them know the minute I start to struggle and they've been very, very good about working with me. Most professors will give extensions for assignments if you get in touch with them at least a few days before it's due.

I think it is definitely worth talking to someone about. Besides, it never hurts to ask and they might have other ideas or options you don't know about or havent thought of. Good luck!