Doing everything but still below the average in calculus

I am taking calculus this semester and I don’t know what I am missing in my study habits to excel. The class average for my calculus course is A for every quiz and exam yet I am in the C region. I will admit, I was never great at math and struggled with math anxiety. However, for this course, I found courage to not allow my math anxiety intervene in my success as a student. I attend every lecture, every recitation, 100% on the Hw, do exam review problem sets, I do all additional practice problems on Pearson, I ask questions, schedule OH with my professor and I am still not ask good as my peers. I attend a top tech university so maybe my classmates are simply smarter than me. I even got a personal tutor to help me with the course so I don’t know what else I can do.