Put the brakes on sugar and carbs especially white carbs like potatoes, white bread, rice, etc. Use artifical sweetners or drink water. This shows you are already type II diabetic probably. Be careful with pastas.
Mine was around 290 and I started using Splenda. Took about 2 weeks to get used to it. Now sugar products and sweets tastes too sweet. Meat and green vegetables as well as fruits are better than white carbs and candy. I drink mostly water at a meal now. Exercise daily, like walking, riding a bike or exercise bike about 20 minutes a day. I was about 252 lbs at 5'9" and have dropped to around 210. I really need to go down about 20-30 more lbs for my height.
Good luck. You will be surprised how full you feel eating meat and green vegetables. You can eat more and it won't hurt you.
