Ah ....... The bread will certainly not be helping, nor will the rice I'm afraid. It sounds like you were given the normal NHS advice to eat carbs but change to wholemeal/brown varieties? Yes?
All carbs convert to glucose once in our system, it doesn't matter what colour they are. The brown varieties take a bit longer, but nonetheless they still convert.
Have you tried testing out some of your meals? You may have a shock. Test immediately before you eat then again 2 hours after your first bite. Look at the difference. This is what your meal has done to your levels. Ideally the rise should be no more than 2mmol/l on your meter. If it is much more, there is something in that meal that needs attention either by reducing portions or avoiding.
Have a go, record what you eat including portion sizes and record your before and after levels alongside. Keep doing this and eventually you will see a pattern emerging and be able to sort out a good sustainable diet that keeps your BS in check and also helps you lose weight.
If you need help with this, record your food and levels on here and we will help you