Congratulations, and keep up your good work!
As far as I'm concerned ketosis is entirely natural state and our bodies are designed to work in "dual fuel" mode using both carbs and fats/ketones for our energy needs. And I believe that before we were brainwashed with all the nonsense about fats being bad for us, that's how we were actually eating. So while "keto" may currently be treated as some fancy trendy diet, in a somewhat less restrictive form it's also a normal way of eating and there's absolutely no reason not to do so indefinitely.
I've eaten normal full fat, moderate carbohydrate food for most of my long life, only eating much higher carb in more recent years when my husband took over shopping and cooking. My T2 diagnosis gave me the opportunity and justification to cut right back on those carbs, and I've since eaten a low carb/ketogenic diet for over 8 years now and see no reason to ever stop doing so.