I would say definitely wait till SOAR to make decisions- you can walk in to meet with your advisor & everything can be flipped around. Happened to me, I had to switch pretty much all my classes. They are the experts, they know what they’re talking about. Class load can also depend on the severity of the classes. Some classes may be easier than others even if they’re the same amount of credits. I was allowed to take 16-17 credits because my advisors felt I could easily handle my classes.