This is an easy situation to resolve. The first thing you need to do is add your teacher's class section. After that, your teacher will be able to see your account.
Make sure you also select the correct High School, if you have not done so. The instructions are the same.
If you are also missing a subject (math or English) the appropriate teacher can add the subject after you have selected their class section.
You can share this article with your teacher if they need instructions on how to add the subject.