math yearlies

so originally, i was planning on spending the first month doing topicals and the second yearlies. i did transition a bit but i still feel like im starting yearlies wayy too late ( i did 2-3 years for mocks and midterms but they were SUPER badly done lol) Does anyone have any tips/advice? My score in math is A on a good day and B on a bad lol. Is an still A* achievable?