Hello Friend, Good that you are seeking a help. Any physical illness and it's treatment needs some time to show the complete relief. You need to believe in your treatment and doctors. Any negativity during this process will further aggravate the problem and cause you anxiety. See, a simple physical illnesses is adding you another mental illnesses because of your beliefs.
Moreover medicine alone can't cure illness. Your dietary recommendations, daily regime, other do's and don't play key role in faster recovery. Just analyze that. Probably you will know where you are going wrong..
Health Tips
Try yoga or meditation or pranyama to manage your anxiety