Tehillim is Good for Chinuch:
A man once came to the Satmar Rov zy”a and complained that one of his sons, who was being educated in the Satmar educational system, was not succeeding in his studies. He blamed the teacher for his son’s lack of success and asked the Rov to move him to a different class. The Rov placed the boy in a new class, with a different melamed. However, the man returned a few weeks later and said that the change had not helped at all.
The Rov then told him, “The truth is that when you came to me the first time, I knew that the melamed was not the problem. I knew that switching to a different teacher would not help, as your only solution is to take a Sefer Tehillim in your hands and to pour out your heart to Hashem. That is the only way to help your son.”