Affiliate Marketing Secrets

Hi, all my life i have been into computer gaming, and fairly decent with computers. I recently have been looking into my college major, and realized that my interest in computers may have a very hard major affiliated with it. I do not want to just settle with a business major because that doesn’t excite me, computer animations and maybe testing or creating games really is what i want to do. My question is, if i have little to no actual computer science skill, will i be able to keep up with the classes and work? Also what should i do to maybe prepare for it ( being able to not jump into it extremely confused ).
Thanks to all who give me advise!