Has it been a while since you were a student? If 5, 10, or 20+ years have passed, chances are that it may be a struggle to return to finish your degree. Many traditional programs will make you complete new requirements, consider some of your credits to be "expired," or force you to choose an entirely new degree program.
You can ease the transition and make your experience as a returning online student much easier by choosing the right kind of program. Take a look at these accredited online colleges that are designed specifically for returning adult students.