Welcome to the forums.
At the time my fasting glucose was 56mmol/l. I was retested again three months later and the result was 53mmol/l.
I'm guessing you mean hba1c, not fasting glucose, as you'd be dead if you had a glucose level of 56mmol/L
An hba1c of 56 corresponds to an average blood sugar of 9, 53 goes to 8.5 and the 48 threshold level corresponds to an average of 7.7. Non diabetics generally keep their levels between 4 and 8 throughout the day, so you can see that all those levels are quite a bit higher than a non-diabetic would have. In an ideal world, you'd be warned of pre-diabetes once your hba1c got to around 40, so 53 is quite a bit into the diabetic range.
But, there are plenty of folk on these forums who get a diabetes diagnosis when their hba1c is up to 90, 100 or even higher, so from that point of view 53 is quite moderate. And though your GP would probably like you to get your hba1c down below 48, they probably won't rush to put you on additional medication (other than metformin) with a level of 53.
But, a second but, your profile says you are 36. So if you are aiming to live a long and healthy life you are talking about potentially 50 years with T2. The medication route for treating T2 tends to assume it is a progressive disease, so medication is gradually increased to control a gradually worsening tolerance to carbohydrate. The end medication is insulin injections, and I would urge you to avoid this if possible. In your position, I would look hard at limiting my carbohydrate levels to that which my body can cope with, achieving remission and normal blood sugar levels. And by the way, weight gain is a symptom of T2 diabetes, so you'll probably find you lose more weight if you cut down on the carbs.
Congrats on the hba1c reduction and the weight loss.