IMO you need to re-prioritize.
- Focus on the actual classes you are taking. Do not lag behind in your HS classes to follow your own personal agenda.
- Take the highest level of math you qualify for at your HS (if you have completed the sequence offered at your HS consider a class at a local CC or with an accredited online school).
- Get involved in ECs that are meaningful to you.
- After all of the above, read the math books if you have time and are interested.