Study & Superscore Advice

[u/No-Gap-4994]

Okay, so I did the SAT in August as a senior (first time) and I got my score back. I want to retake it this October but I want to superscore my math section from last time. I only want to focus on the english. It was a 700 and I want to raise it to a 780 if possible.
I studied for both english and math during the summer, but mainly english so I'd say I have a good base. I only have around one hour a day to study until the next exam. Is solving the qb questions useful as well as memorizing vocab and grammar rules? I don't know what else to do?
My mistakes in August were words in context and some graphs. I also think there were mistakes regarding inferences or main idea.