- You do NOT need to participate in a sport to help your college admissions chances. If there is one you enjoy, by all means. I insisted my kids do SOMETHING for fitness reasons -- but it didn't have to be in school. One was captain of the HS volleyball team. The other settled on club fencing, which suited her personality and our schedule very well. But you don't need a sport at all, except for your enjoyment and own health reasons.
What you should do is try out ECs (both in and out of school) that you think you will enjoy, and ideally get pretty in-depth with one or two of them in your HS years. It is okay to try something and drop it after 9th grade if you don’t like it. And don’t overcommit to ECs. One of my kids did (3 sport athlete her frosh year, plus Girl Scouts and speech team) – she couldn’t handle it, and had to drop her spring sport due to issues with her grades. She dropped a second sport after 10th grade (even though she’d been elected captain for the next year) because she wanted to add a couple other school clubs.
Don’t forget you can sometimes do some interesting things in the summer. One of my kids went to Finnish language camp every summer. The other did canoeing trips for a couple years, then an engineering camp and a camp where she took some college classes. Some kids work to earn money for college summers, or volunteer. Just be busy – college like to see engaged, busy people.
- I'm taking AP World, Honors English 9, Honors Algebra II / Honors PreCalc (tbd), Honors Biology, Honors Chemistry, Art, Before-School Yoga, and Spanish II. Will I die next year?
There is no reason to accelerate your math path as long as you get through some level of calculus your senior year. Don’t worry about what everyone else is doing. Math fundamentals are important. So Algebra II seems like a better choice. Why are you taking Bio and Chem in the same year? That does seem like a heavy load. Bio would be typical at our kid’s school for a 9th grader.
- How the heck do we deal with homework? How much will it be?
You will have a lot of homework with that schedule. You have to be really disciplined. Use a planner (paper or online) to track everything. If you can schedule a study hall, do it. I insisted my kids have one during their sports season (for kid who didn’t have a school sport, she did it during robotics season, which is crazy busy). It didn’t hurt their college admissions at all.
- How much downtime will we be spared, if any?
Not a lot. But don’t overload your schedule.
- How the heck do you get good grades (meaning As)? (I've gotten a 4.0 so far in 7th and 8th (well, the latter is still ongoing and would technically be out of 4.5, but I digress) but I'm assuming that those classes above won't be as easy as these two years have been)
One tactic to use is to get ahead in your classes. Do the reading and take a shot at the homework BEFORE the teacher lectures on the subject. Hopefully your teacher will give you a syllabus so you can plan this out. Also, when prepping for tests, try to predict what questions will be asked or what type of problems you’ll be asked to solve. If you didn’t get it right after the test or quiz (didn’t figure out what they would ask), go back and try to figure out why the teacher picked what they did so you can do a better job of projecting that going forward.
Listen to your teachers and read the syllabus. Teachers will often tip their hand for what is important if you just listen to them. That really pays off when you do assignments and take tests.
Finally, don’t worry too much about college now. You really need to start thinking about it around the end of sophomore year. Get the best grades you can, and find ECs you enjoy and do them with enthusiasm. Make friends and have fun with them.