Yay, first response as a math major!  First off, I want to note that I came to Hopkins with no intention of majoring in math, and that the department here convinced me to add it as a second major by my sophomore year.  Now, I have completed the program in only 5 semesters, but I will continue to take more classes in the department, including graduate courses.  I have found that this department contains some of the most compassionate professors that I have encountered at the university.  Though the major doesn't require many courses, there is a large gap between the lower level courses, which are more plug and chug, versus the upper level courses, which are more abstract and proof based, and often there are no numbers at all!  As a freshmen, when I faced overcoming this gap, it was not easy, but a postdoc in the department really helped me through it.  All I can say is that I am so happy I stuck with it.  Though my math courses have always been my most challenging classes each semester, they're are always my favorite.  It's really fun coming into a semester often not knowing anything about a particular subject, and then walking out feeling like you have really mastered something.  As an initial freshmen, I think it is difficult to tell if you want to be a math major if you are uncertain.  The major is really much more complicated and deeper than just calculus of varying difficulty.  My best advice to incoming freshmen is to take the lower level undergraduate courses, and really think about if the more abstract notions in the class interest you.  If you find yourself enjoying understanding how awesome some theorems are, then maybe the minor or major is a good fit for you.  That's how I ended up in the program.