Hi 2mrbean, welcome to the forum
🙂 Are you on any medication for your diabetes or thyroid? I know we have people here with both conditions, so hopefully someone will be along to share their experiences soon. How is your diabetes control? Are you able to exercise? Something that a lot of people find helpful is keeping a detailed food diary, itemising everything that is consumed in a week and recording carbohydrate, fat and calories. It can sometimes we quite enlightening and is a good way of looking to see if there are any areas of your diet that could be improved by either removing things that are not good for you or replacing things with healthier alternatives e.g. change from butter to low fat olive spread, reduce carbohydrates by consuming more of other green vegetables.
A book that has recently been recommended here is
Rick Gallop's Express GI Diet which has helped people both to lose weight at the same time as eating a diet that is very diabetes-friendly.
You might also like to browse through the weight loss section of the forum fr more hints and tips and some great success stories. It can help a great deal to have the support of others who understand, so you have definitely come to the right place! I look frward to hearing more from you
🙂