1) Every Major is Different
Each major requires its own type of work, studying, and basic skills. While some majors focus more on projects and papers, others focus more on tests and quizzes. Regardless of what type of work your major requires, nothing is "easy". For example, I would find it extremely hard to complete the projects required to be an art major, and I'm sure someone who is an art major would be just as confused by my excel spreadsheets.
2) You Get What You Give
Every major is what you put into it. If you are not willing to put in all of your effort and devote time to studying and getting work done, no matter what your major is, you will have a very difficult time. Switching to an "easier" major because you can't pass a class will not fix your problem if you do not have a good work ethic. If you put in the time and effort, good things will come from it.
3) Interest and Passion are Everything
At the end of the day you have to have a passion behind what you are doing. If you are not at all interested in your major, you will not have the drive necessary to get through school. If you have no passion or plan behind what you are going to school for, it can be hard to stay motivated and remember why you're pursuing your degree. At the end of the day, college is not easy breezy for anyone and we are all here to get a degree.