You're not doing anything wrong. Unfortunately, it's just the disease process.
Talk to your dr. about changing meds. You may just be on the wrong one.
I don't know how long you have been dx, but my 1st year was full of "serial" flares. I had one after another every 6 to 8 weeks - total of 6 or 7 flares in the 1st year. It was frustrating and annoying and even a little scary as I had no clue what this disease was going to do to me in the long run. Eventually, things got better. I don't know if it was the Copaxone or just the disease process slowing down that I started doing better.
Hang in there and know that you will be ok!