Do what works for you, but rather than highly restrictive dieting why not strike a happier medium of exercise and dieting?
Assuming you are not somehow debilitated, join a gym, go for a daily swim, walk, hike, bike ride or some sort of regular exercise you can sustain. That will be far more beneficial to your health than cutting out all your favourite foods -- unless of course your current diet consists primarily of booze and sugar.
You are also far more likely to meet a livelier group of people if you get out there.