I attempted an undergraduate degree in the US and dropped out after 2 years because I struggled in the context and hadn't learned the discipline I needed to get through each semester.
Since then, I've become so enthusiastic about academia in large part because of sci-hub. For all my interests I can find papers and access them with no institutional affiliation. I've learned how I learn, gained valuable research skills, and am planning on re-applying to finish a bachelor's degree!
Although I come from a place of privilege I owe a great debt to sci hub. I can't imagine how critical it is for those outside my bubble, where institutions might not have great access in the first place.