thank you mrsA2 and Paul for your help and advice, the link you sent me Paul did help me understand a little more especially with the diet side things.
Hang in there, Lee. It gets easier. How you feeling now?
Like you, at first I just wanted to reduce my blood glucose levels as fast as I could. I was experiencing some diabetic symptoms that were impacting my quality of life, mainly sleep deprivation and being able to maintain normal routines, so I went strict keto (20g carbs per day max) very quickly after diagnosis. It worked, my blood glucose fingerprick readings started reducing steadily from 17.9 at their highest when diagnosed, down to under 10 in around 4 weeks. Day on day, week on week, they came down. However, reducing carbs as quickly/suddenly caused some side effects, mainly wonky eyesight and keto "flu" (foggy head, feeling a bit rough etc). These side effects passed in about 3-4 weeks and my diabetic symptoms subsided significantly (going completely within 6 weeks).
Have you been started on any medications at all? Some diabetes medications can cause some issues if you're reducing carb intake, so you'll need to work with your doctor to modify dosages if needed.