im assuming your goal is to cut which I think it should be, if your maintenance is about 2800 I calculated it to be about that, then your goal should be about a 20% cut (500cals) so your gonna wanna eat about 2300, but make sure you go back up to maintenance every once a week to keep your metabolism strong, since you just started you could probably get away with a little more make sure you lift hard too take advantage of those newb gains. General rule of thumb is to eat a gram of protein/per lb body weight, although some disagree, I think its better to split up into 5/6 meals a day. As long as you stay w/in your cal limit, you stick to a well balanced diet of complex carbs, lean protein, fruits, veggies, lean dairy, and good poly/mono unsaturated fats like peanut butter and tuna/seafood you should be fine 3rd day seems like a goal you should go for about 2300cals and more protein, too much fat most of the days and its ok to have alcohol sometimes as a cheat but stick to water.