I am 61 year old male, having insulin dependent diabetes from year 2003. I am taking plain insulin 26-26-26 and lint insulin 16-0-16 each day. I also take metformin 500 mg 1-1-1 and some other small tablet with it, 1-0-1. I have no other problem with my health, except stiffness in ankles and difficulties in climbing the steps in the building. Kindly know me what I should do now to keep myself free from insulin over the period of time in a long run? or is it better to continue with my present medicines throughout my life?