“Reading Rainbow” host Mychal Threets announced plans to check himself into the hospital. “I am not okay. Maybe I’ll never be okay. I’m seeking help,” the 36-year-old wrote on Threads on Monday. He added, “Going to the hospital tomorrow. In this moment I am safe. By God’s grace.” Threets told his followers that “no matter what happens to me I will always be thankful for the extraordinary people in my life who worry, who help me.” “Thank you for your care. I will always love you 💚,” he concluded. Page Six has reached out to Threets’ team for comment. The famous librarian — who has opened up about his struggles with depression and anxiety…