Incoming Laurier Health Sci: How can I prepare for Calc, Stats, and Chem over the summer with a weak math background

Hi everyone! I was recently received an offer for Laurier Health Science and am planning to start this fall. I'm really excited, but also pretty nervous about the required math courses. Math is definitely my weakest subject. I failed Grade 11 Functions, retook it through Ontario Virtual School (OVS), and just finished Grade 12 Advanced Functions through OVS as well. Even after retaking them, I still feel like I'm struggling with the concepts. Is there any way to prep for Introductory Calculus and Statistics for Life Sciences over the summer? What are the best resources (websites, YouTube channels, prep programs) or study strategies to get ready for these specific classes? Also, I'm finishing Grade 12 Chemistry with around a 75%. I also want to boost my performance and excel in university chemistry. What are the most important high school chemistry topics I should review over the summer to start strong + what resources can I make use of?