Be your own detective. Do a Cheshbon HaDiet and figure out your Worst Noshing Times ( most often couch potato times or stressful times) and Worst Noshes (calorie laden). Try substituting healthy foods for the unhealthy and offer yourself “fun” rewards, other than eating, for a week of “being good”.
Also, get a quality juicer and drink home made vegetable and fruit juices, and try to make them and drink them on a schedule. You’ll want less nosh. Eat high fiber foods. Eat less starches, especially white flour and sugar. Try dieting with a friend and compare notes about what helps.
Be confident and think of the prize.
Hatzlacha.