@LJRC Don't worry about insulin - it's given by injection, not tablets as it doesn't survive stomach acids, but as a T2, you'd have to be significantly worse than you are to need insulin. There would be many other meds that they'd try first if you needed some help. I managed my T2 with diet and exercise and gradually losing weight, for about 19 years and it was only after a medical emergency in 2010 when I lost my way and nothing I did worked well enough any more. Meds don't seem to work with me, so I chose, in consultation with my DN to go on insulin, because that was best for me.
If you've lost weight and are reducing carbs, you are already doing the right things. Exercise really helps too - I know that's the one thing I can do that makes a tangible difference to my levels. A good walk is all it needs.