I am a tutor for a student and I work with him 7 days a week, for about 2-3 hours a day. The student severely struggles with math, although I am a tutor for every subject (he is in high school). His first chemistry exam he got a 77, and I brought it up to a 96. I studied with him for history and he received 100 on that test. However, his first math test was a 73. I spoke with the parents and told them that the homework he is receiving is very different (in terms of difficulty than the exam). The homework is much easier. So I decided that despite how easy his homework is, I will come up with challenging problems that are similar to his exam problems.
He had the test today and said he really messed up on it. I spent 4 hours yesterday and 4 hours the day before preparing with him. I gave him a mock exam, I came up with questions that are similar to his review sheet. I did everything I thought I could to help him. What should I do?
I noticed that during the mock exam, he could barely answer any questions without turning to me to ask for clarification and then he would stop midway and though his logic was sometimes correct, he would make silly errors.
Is there anything I can do in order to fix this situation? I feel responsible for his bad grade. What more can I offer to help him, or what more can I do in order to make him succeed?
I feel like I failed him, and that it's my fault. During the sessions I am very attentive and any small thing he doesn't understand, I make sure he gets it. So I don't know what to do. I've never experienced this before.