What is a good result

Went to Dr. today. Took a bit of a gut punch. I am on humira for about 2 months(I know it could take up to 6 months to work) Have a little relief, but my biggest problem areas are my foot, both knees, and lower back

When this all started, I said to myself to stay positive, and mostly I have. Today, Dr told me being pain free is a unrealistic goal. Is that true? Really set me a back a bit. I struggle as a 44 year old man to climb stairs. I struggle to sleep at night with discomfort. I was hoping after all these years of pain, It might be better, not just a little, considerably better. Why are we putting all these drugs in our body if not to be back to normal?