Self Study Chem and Calc?

<p>I’m a senior in high school right now, and I plan on taking Chem and Calc my freshman year. I took AP Biology this year, and I’ll most likely get credit for it. I know Chem and Calc are hard courses for freshman and to begin college with a high GPA, I was wondering if I should self study for Chem and Calc by using AP Review books over the summer. I was honestly terrible at PreCal and PreAP Chemistry in high school and I got a C in both classes. I want to do school right this time. Even if I do self study, is Chemistry and Calc in one year too much in a year? Or are many people exaggerating when they say they’re both extremely hard…</p>