To college student
I followed a similar diet except that I used whey protein powder instead of Quest bars.
I am down 30 lbs since mid November.
I always had boiled eggs ready in the fridge and used frozen vegetables and they were the least carbs eg cauliflower,broccoli.Always had chicken breast and fish as the meat protein.
I sometimes made a stir fry with a couple teaspoons olive oil.
The whey protein powder was my snack.I usually added water to it and it is 110 calories.
Most important of all was my food scale and measuring cups.
After about a week of stubborn whiteknuckling determination the hunger subsided and I am now maintaining at 138 lb.
It absolutely can be done and not be very expensive.