Is this ok for what I ate today?

Lunch
Cheeseburger without bun
salad with lettuce, cucumbers, mushrooms, with bacon bits and bacon ranch dressing
Diet Sprite

One cup of coffee in the afternoon

Dinner
A ton of roast beef...like 5 or 6 or maybe 7 ibs ( i was STARVING, but i think i ate too much)
Another salad with plain tuna, bacon ranch dressing, a sprinkle of cheese, and acon bits
I'm considered i really overdid it at dinner on the roast beef...also will drinking one cup of coffee and 2 diet coke's really delay my weight loss? cuz these drinks get me through the day