Renee, it IS doable! You have the list, now just prioritize it and set a date to finish item number 1. Then figure out what you have to do to get from where you are to finishing that item. With kids, I am sure it is hard to schedule too far ahead, but at least on a Sunday night, block out some "Renee Time" to work on your project. You will be amazed at how much you can accomplish when you are motivated and focused.
I don't do scrapbooking, but can you do some of the organizing for during some of your wait times -- waiting on kids to get out of school, waiting at the doctor's office etc? If so, make sure you have some pics and envelopes with you at all times to work through them. Or some paper and pen to draft any journalling you want to do by the pictures.