I can understand your reluctance to go on to insulin.However, My T1 husband hasn't had any problems with his driving license. It just has to be renewed every 3 years.
However
You have reached a point where you might be ready to take care of yourself properly.
As you realise, Diabetes can lead to horrible complications of Nerve function, Eyesight and kidney disease. All these are caused by too much sugar circulating in your blood, damaging the micro blood vessels.
To control that sugar, you have several components:
1) medication, In most cases, including insulin,this will turn much of that glucose into stored fat and you gain weight
2) your diet, What you haven't eaten won't be circulating in your bloodstream. this is the logic of the low carb diet.
3) your exercise, you burn it off and exercise helps to reverse insulin insensitivity, which is the cause of much T2 diabetes in the first place.
You will have to find your own best path through the minefield, but I always suggest that 2) and 3) are the best route, because there are no side effects.
You can't hurt yourself by reducing the sugars and starches thaat you eat. that includes the so-called healthier un-refined versions of flour,pasta, rice etc.
Read through this forum. there's loads here. If thereafter you have some specific questions, someone is sure to come along, who can answer. We are diabetics supporting diabetics, from our own experiences, here, not book educated medics( except Katharine,Libby and the dieticians)