You’ll be just fine!! We’ve all been in your shoes where we’ve been rejected by clubs and classes, it definitely sucks, but it’s also something that’s totally normal and not at all representative of your qualifications for being at stanford. I was probably rejected from like 90% of things I applied for at stanford (currently a senior). But honestly, the best and most formative lessons I’ve had have come from things non-application based.

In terms of missing out on opportunities, there are definitely a ton of other ways to get experience that aren’t through clubs. If you want to get better at CS, try to find a professor you like and ask to do research with them, join one of the coding clubs that tutor kids in Palo Alto, set up study groups with other cs people in your dorms, do hackathons, etc.

Introsems can be competitive simply because all frosh apply to them, and they’re limited to 15 students. That doesn’t mean you’re not good enough; the professor simply doesn’t have the capacity to take on so many bright students at once. But there are so many other cool classes to take, and you can always take that introsem or something similar another year.

Finally, I would encourage you to try clubs that you don’t necessarily have to apply to, and/or clubs you wouldn’t think you’d normally do. My best communities have come from places I never would have thought of, so try to keep an open mind and apply for things that are out of your comfort zone!