Money is probably the most important factor in the United States. If you're not coming from an affluent background, going to college can easily become a debt trap and you could find yourself buried under decades of crushing debt.
Club participation isn't as important when it comes to getting into college as you would think and you really want to avoid joining clubs that don't appeal to you, since they're mostly a waste of time. Join clubs that revolve around things you're passionate about, such as the anime club if you like anime or the art club if you like art. Also, be wary of religious clubs; I know they like to do things like throw pizza parties, but they can be really predatory. I would also be skeptical of political clubs and military-oriented clubs for the same exact reason. Again, focus on clubs that appeal to your interests, since they're a good way to meet like-minded people and build lasting friendships that might stay with you well into adulthood. Don't worry about other people's perceptions here.
As for sports, again, focus only on what you're absolutely interested in pursuing and can commit the time and energy to doing. The same rule applies to activities like band and choir, since these activities will take up a lot of your time and energy, which you might not be able to manage. If you have the time to volunteer and want to do it, do it, but don't beat yourself up over not doing it if you don't do it.
Focus on passing your classes and getting good grades, but don't let it rule your life and understand that not everything boils down to having a perfect GPA. If you're able to graduate at all, that's a huge win and the doors to college will be opened by virtue of passing alone.
Don't neglect building friendships and making connections with people.
That being said, instead of worrying about getting into a big name school, start off by earning your associates degree at your local community college instead. Community colleges are much, much cheaper, are open admissions, and provide additional resources like remedial classes if you need them. Once you've completed an associates degree you can transfer your credits to a bachelors degree program at a larger school, and most likely bypass the standard admission requirements in the process. An associates degree will also give you better job prospects than "some college" if you need to work while studying. CLEP tests are another good way to reduce your tuition costs. It's also okay if you decide to take a break before figuring out what direction you want to go in.
Don't worry so much.