Hi
@embayweather
I've just had a read through your previous posts.
It sounds like you are getting no help from your diabetic team? Do you have a diabetic team? In your position, given your complex medical needs, I would be pushing for a referral to a hospital rather than a GP so that they can see whether your diabetes type has changed. (Clutching at straws here but if there is a chance that Covid has damaged your pancreas then a T3c diagnosis would give you better diabetic goodies such as a libre). And they could also review your diabetes medications.
The issue with a single injection is that it is going to be fairly level throughout the day, so it's not going to give you any help if you need extra insulin to help with meal times. You don't want to end up going hypo at night because you've increased the lantus too much.
Though 60 isn't a fantastic hba1c it's actually not (in my opinion anyway) that bad (I've probably had several decades of levels like that in the past and I still have working eyes, limbs, kidneys). But there is certainly room for improvement.
It sounds that your diet is fairly carb heavy so reducing the carbs a bit might help reduce the spikes. Do you like cheese? But I don't know what constraints your other medical conditions put on your diet.
Good luck.