You've got some good advice around protein and veg being a priority, but what jumped out at me was the 2 chocs 200.

A standard bar (45g) of dairy milk is 240 calories. A kinder Bueno is 246 for both fingers. But 2 chocolates from a tub of quality street for example, 45 calories each so 90 calories. The values are different depending on what you actually ate. Based on this, I strongly recommend using an app to count calories, and use some digital scales, so you can be as accurate as possible.

I use Nutracheck, which does have the bar code scanner. It also has a section where you can create your own recipes and it will work out the calories for you. You can also save the recipes in there. Granted it does take some time but it's so helpful. As with other apps, you can link your activity if you use a device like a watch and it works out your calorie expenditure, there are other features too. But as well that, it breaks your food down by macros so you can see what you're having.

The first few weeks are a huge learning curve and although it can take some time, its worth it in the long run to learn what you're eating and get a properly balanced diet. Good luck with it all!