Welcome to the forum, your experience is not uncommon and the lack of support sadly not untypical but you have come to the right place for help from people living with the condition.
Your blood test result is not desperately bad, yes it is in the diabetic zone but not too far but certainly far enough to take seriously.
Making some lifestyle changes, primarily dietary will have the most impact.
What everybody regards as healthy choices are not necessarily so if Type 2 diabetic. The essential thing is that ALL carbohydrates convert to glucose so it is those you need to reduce in your diet.
This link may help you find a way to modify your diet
https://lowcarbfreshwell.co.uk/ It is a low carb approach which many people find successful.
A good start is to make a food diary of everything you eat and drink and estimate the TOTAL carbs you are having, the look to reducing then gradually over a few weeks as a rapid drop can cause eye and nerve issues.
It is worth taking time to make a plan but you will get used to looking at the nutritional information on packets and googling. Remember it is the Total carbs you want not the sugars.
There are some things you will probably want to cut out like cakes, biscuits and sugary drinks but others look to reducing the portion size and basing meals on protein, healthy fats, so meat, fish, dairy, eggs, veg, salads and fruit like berries