I am a undergrad physics major taking my first calculus bases physics course. I am having trouble with Mechanics, which is a main topic of this course. I understand the basic equations, but I find that the problems we are given for homework and on tests involve finding different and combined forms of these equations. These different forms are not covered in class, and there aren't relevant examples in the textbook. I really love physics, and have been fascinated with the topic for as long as I can remember, but if I am having trouble with mechanics, is physics really for me? Do I need to be very good at mechanics to excel in my upcoming physics courses?