I know how you feel, I've recently returned to college and I feel like I'm having a harder time retaining information, and I've always had a problem with procrastination.
I just took a test in which I didn't do too well because I put off studying and just didn't get the time to cram, so I flunked it. Now finals are coming up and I've got more work on my plate than I can handle and I'm still putting it off.