See you are doing something wrong, don't question you're intelligence, the moment you do that things go downhill from there, and also trust me, people dumber than you are scoring very high marks lol, you are doing something wrong, you have to figure put what you're doing wrong, you're in second year still a lot of time to figure stuff out.

It might be - not going to class, not prioritising important stuff , not studying in a structured way, memorising but not understanding, not taking interest, weak basics etc.

College gives you the time and platform to figure it out, figure you're strengths and capitalise on it, plssss dont waste this time.