You need as much carbs as you need to give you the energy you need to cover whatever activities you intend. Complex carbs are much better than sugar, especially for endurance activities like cycling or a long hike, as you need the slow release of energy to keep you going, rather than a sudden jolt of a sugar rush.I think this current obsession with low carbs, no carbs, keto, no sugar, low GI really is getting out of hand. All of us could probably cut back on actual sugar as sucrose, but carbs are still an important part of a balanced diet, especially if you do sport or have a physical job.
Sometimes the mental health benefits of eating something you really like and enjoying it guilt free does you far more good than the harm the wrong kind of calories might do. If your diet is otherwise healthy, you are physically active and of a healthy weight. Eating carbs alone and even sugar doesn't give you diabetes, though you do need to limit them if you are already diabetic/prediabetic. Being of a healthy weight reduces the diabetes risk by more than any other factor and if you are prediabetic, weight loss is the biggest single factor in reducing your risk of it becoming full blown diabetes, more even than how much sugar you eat.
Agree, Diabetes UK website is a valuable source of information, so is the Livewell website. Also, most of the major supermarkets have recipe pages that are organised and flagged in a way that can be easily accessed by people with various health issues.
Hope you enjoyed your chocolate, gow. Sadly, it's not something I can indulge in, atm.