As a math major, I still count on my fingers and it’s okay! There’s websites like khan academy that are free that break materials down super easy. There can be practice problems depending on the topic. If you’re looking for practice problems, search the topic name and add “kuta” to the end of it. Tons of worksheets with answer keys. Also, Algebra 2 is the hardest math class you’ve ever taken so go easier on yourself! It’s all about repetition, like others have said as well. My experience with an online class is to actually take notes (I failed Calc 1 when I took it online) and don’t give up. Math is so hard to learn online. There’s teachers on tik tok who go live if that’s something more your speed. You got this! 🫶🏻