Ancondry, sorry you have had so many issues and that you are feeling so ill right now.
I realize that you are very busy and stressed and taking care of two young kids is never easy. But your practice of falling off your meds repeatedly is something that you have to stop. Whatever approach you end up taking from this point on, you must realize you have to keep up your vigilance or this disease will continue to wreck your life. You cannot stop taking meds when you feel better. Remission must be maintained.
I realize there are folks here who will tell you they have been med free for xx years. I am sure they feel great and I am glad they are having this experience. But the research (at least that I have read) does not support the notion that you can stop meds if you achieve remission. I think remissions like that are kind of like accidents. And maybe it's true that a 10 year remission with no drugs is worth it, even if you end up with pancolitis at the next flare. Personally, I do not subscribe to that kind of thinking.
Stress is absolutely a factor in causing flares. It is not possible to eliminate stress, but it is possible to do your best to manage it. Look ahead and if you see a big issue coming (deployment? move?) and plan around it. Set up your support system ahead of time and make sure it's ready for you. Plan exercise into your day. Get yourself some "me" time to relax.
As to how to deal with your current IBD, I don't have input on the Cimzia. I will say that rectal mesalamine is very effective for the inflammation you're having in the rectum and sigmoid colon, and I'm sorry that you did not have that in your treatment plan already. Call your DR and get some.
There are dietary approaches that many have tried, some successfully. The one most people here will talk about is called the Specific Carbohydrate Diet. I haven't tried it, but I have gone gluten free and I feel much better for that change.
I hope you feel better soon.