There are some people who aren't required by law to disclose unless you actively threaten to hurt another person. People like priests and rabbis are one group, but you might not want to talk to them.
Usually, the people who man suicide hotlines and other crisis hotlines are another. You could ring them? I think www.befrienders.org lists all the crisis hotlines by location.
Neither of those groups offer real counselling, but you could just talk.