I've really enjoyed math lately. I've decided to go for a math major.

Long story short, I could use some quick advice on the upper-level math courses (abstract algebra, real analysis, etc.). If I find Calculus II and III easy will I find these courses doable (or easy)? It's really been intimidating me. I don't have too many problems with Calc, but before I head down the road of a math major I just want to make sure I'm not going to run into any massive road blocks.

Also, I know I should be asking this to an advisor or professor, but I'm looking to get some insight before tonight is over (I've got my reasons).

If anyone could respond within the next few hours it'd really help me out.

Thanks.