Hi Bella, I am so sorry you are having such a hard time. There are many of us out there that cant seem to get this DD completely under control 100% of the time. I just got back on Cimzia again after my crohns spread throughout my system so I can understand and sympathize with your frustrations. If you had luck with Cimzia at one time, you may want to consider trying it again. I initially took it for several years and it became noneffective but after a year or so break, I tried it again and it is working again.
Have you tried probiotics? These help me by making my disease less aggressive and more responsive to medications.
Diet help me also. I cant follow SCD or Paleo fanatically as I should but when things are bad, I do a gluten free, high protein, dairy and sugar free diet as long as I can possibly do it.
There are also several supplements that seem to help.
I wish you the best and hope you get to feeling better soon!