/sci/ - Science & Math

Did you change to another major or dropped out of uni completely? If yes, why did you do it and what did you study before and after?
Also what does /sci/ think about switching majors? When should you realize that you are too small brained and do something else as opposed to just trying to get through the hard stuff? Is there any good way to figure out if a certain subject is the right for yourself before attending university?
pic unrelated and a cringy meme