You just need to remember weight loss is a simple numbers game, any attempt to complicate it makes it more difficult and you will quickly get fed up with it.
Use a food diary for a couple of weeks, work out what you can cut out, and what you can't, you could even use something like mydailyplate.com is thats easier.
Everytime you eat something think, do I NEED this, or do I just want it, because there is a huge difference, and the body is very good at lying to get what it wants, not nessecarily what it needs, especially if it's been used to processed, sugary, salty, fatty foods, which are, IMO, addictive and habit forming.
Also, forget any form of faddy diets, they don't work in the long term.
2800 cals a day isn't high for someone doing a moderate amount of running, I can easily burn close to 4000 cals a week with my running.