how to get gpa junior year?

hey, I’m sorry I’m posting about this again but im super nervous.
I’m a smart person and have a lot of drive, it’s just that with family problems this year was pretty rough. Freshman year I got a 3.3 gpa and this year I received a 2.9. So my cumulative gpa would be about 2.9 UW.
Anyways, I want to retake my two math classes to replace a better grade to get it up, I just have to email my guidance counselor about my options in regard to credit replacement (and hope she has access to her email now that school is out). However, I still have junior year coming up and will be taking 2, possibly 3 APs and honors everything else (however I’m terrible at math so may switch to regular if needed).

What is the highest possible gpa that I could receive and what grades would I need to reach that?
Thanks so much

just realized there is a typo in the title…I meant “up” lol

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I would recommend you go and talk to your guidance counselor. They should be checking e-mail over the summer and some could even meet with you. You want to select classes that you will perform well in. Your GC can help you do that.