Why are you fighting insulin. I know, it is a different thing to deal with and does have its dangers(hypo's). But, it will take a load off your syetem right now. You can back off if things work out. Time is not on your side here. Do what is best for your system, not what's good for you daily convience. Insulin is as natural as you can get.
Can you progress real fast. Certainly it has happened. Usually in response to some trama or just plain old poor control. Look at insulin for what it is and what it does and you will see that it is not your enemy or something that will harm your body, if done correctly.