Babs44...Get up and get going. It really isn't bad once you start.
My biggest piece of advice to you, is to find something that you enjoy doing so that it's not like you're working out. I for one enjoy going to the gym, can you say EYE CANDY! I get bored with the gym on occasion so I throw in yoga and zumba when I get the chance. It's fun and relaxing.
If you don't set up a routine then at least start making a few changes such as parking as far away as possible, taking a 10 minute break to just walk or do some chair exercises while watching tv.
You can do it! We're all here kicking your butt!