Hi Welcome to the forum. You have experience very much what many other people have, with a diagnosis over the phone with very little extra support of information. The level at which you get a diagnosis of diabetes is 48mmol/mol so you are at the bottom end of the zone some people being in three figures when diagnosed.
At that level your surgery hopefully will be willing to give you the opportunity to bring it down by making some dietary changes and increasing exercise though at 60mmol/mol, you might have to convince them you will have the motivation to do it without meds. The first go to med would be metformin which gives the body a helping hand to use the insulin you produce more effectively but still requires some dietary changes on your part.
You should be offered a check of your feet and eyes and referral to a diabetic nurse specialist usually at your surgery.
The main thing is that you will need to reduce your intake of all carbohydrates by cutting out things like cakes, biscuits and sugary drinks and reducing portion size of things like potatoes, bread, rice, pasta, breakfast cereals and some fruits like bananas and tropical fruits.
Basing your meals on meat, fish, eggs, cheese, diary, vegetables and salads and fruits like berries you can still have tasty filling low carbohydrate meals.
I hope somebody will put some links for you but you could look at the Learning Zone (orange tab at the top) to get you started and work through at your own pace.
I'm sure you will probably have lots of questions so please feel free to ask anything.