Hmm, I am by no means any type of expert since I, too, am still at the beginning of my journey, but here's some thoughts:
1) maybe pick one thing you can do to make your life healthier (get up 30 minutes early 3 days a week and go for a walk, or go for a walk before your grandkid comes over on the weekend)
2) brain storm if any of your friends are trying something healthier (like weight watchers, a biggest loser challenge, etc.) because having someone to do it with you and give you tips on what you're doing is helpful.
3) EATING is a lot of the battle, so something probably needs to be done about your husband's not so healthy cooking. Would he be open to cooking healthier, or buying you something else (more salads/chicken/sandwiches, etc. instead of pizza/pasta/fried chicken)? Or maybe a meal plan thing (like jenny craig, nutra-system, or just eating a Smart One for dinner instead) would be helpful at first?
I hope you can find your "groove" too
How do I start?
McCull has some great starters. 
