Simply just any good resources for homeschooling

For context, I'm already at an online school, which contains very helpful teachers, good explanations, and enough lessons to get me through life. Which is great. However, because I am homeschooled, I am worried about not getting as far as the people who are not homeschooled. I am just asking if anyone knows any good websites/books/movies etc that could perhaps me educational and help me on my journey. Exams and GCSEs are also something I'm extremely nervous about.

By the way, I am in Year 10.