Waiting to do something we really want to do can be VERY hard....but just because it's hard doesn't mean it isn't the right thing to do. A snake or two might not be too hard to figure out how to care for during your college years, but turtles take a lot of space and time and specialized enclosures. I would seriously consider putting off acquiring ANY new animals until you're absolutely sure what your living quarters will be like and have a very specific plan in place for handling current and future animals.

You won't ever regret waiting for a little while....but you might very well come to regret the early satisfaction of buying animals now.