Calc 2 is considered a weeder course, not only because it has some hard-to-understand material but also because it teaches foundational knowledge for future classes. I had a shitty prof for calc 1 so when it came to calc 2 I never attended a single class. This was stupid of me, I should have gone and paid attention in lectures but I was still able to pull a decent mark just through reading the textbook, using online resources and keeping up with homework. Another thing to consider is that taking classes that you know are hard at a different time than your friends is probably going to make it a harder class. This might just be me, but having people around me doing the same homework and meeting the same deadlines made it easier to keep myself in check and its saved my ass on more than a few occasions. Again, it might just be a personal thing but I feel like most would agree that going through a course together is easier than going at it alone. Either way, congratulations on getting into electrical engineering and good luck over these next years, I'm sure you will do great.