advice on increasing my chances to get into Air force academy

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Well, it seems like you're doing everything you can academically. I would say join an academic team of some sort if your school has any and make sure to fill out their questionnaire in March of your junior year. If you need the link, I will make sure it gets into this somewhere. There's a summer seminar you can attend when you're going into your senior year. Their academic requirements are:

-Four years of English (with a college preparatory class in writing)

-Four years of math

-Strong background in geometry, algebra, trigonometry and precalculus

-Four years of science

-Lab-based and should include biology, chemistry and physics

-Three years of social studies (to include a course in U.S. history)

-Two years of a modern foreign language

-We look for modern foreign languages with an emphasis on strategic languages such as Arabic, Chinese, Japanese, Spanish, German, French, Portuguese and Russian. While not a modern foreign language, Latin is acceptable. American Sign Language is also an acceptable course.

-One year of computer study

-Computer Science courses or related courses that focus on coding, programming, and web development.

They highly encourage athletics as well as academic ECs. If your school has one, you could always join a weight class or weightlifting club. It will not only help you with the athletic eligibility but also with your varsity wrestling (coming from someone who has wrestled).

Here's the link: academyadmissions.com/prepare/high-school/