Am I supposed to be more productive

Ever since i started JC i have done all my tutorials properly and understand most of the content of lectures. Meanwhile i see people in j2 having a schedule equivalent to eat work sleep repeat. It makes me scared that im not doing enough. Since Secondary Sch i never really studied for tests until the last week. I never really did recaps of on topics until a test is coming. I scraped by with a not close to failing but not the best kind of gpa in secondary school and with the march hols here I have just been gaming all day and doing nth. I keep seeing people talking about how you must study and recap topics alot in JC to survive and i genuinely feel useless not doing anything. But I don’t know what to do either.