Keep track of how much weight you are losing and change your methods if you are not seeing the kind of results you were hoping for. Reward yourself when you meet your goals, but not with food. You could, for instance, go and buy some new clothes or go out with your friends to celebrate.
You do not have to go on an extreme diet to lose weight. Eating three balanced meals a day and getting the amount of calories your body needs should be enough.
Try cooking your vegetables in different ways and get some exotic fruits if you do not enjoy eating apples or pears. You should also purchase whole grain products. Replace white bread with a whole grain equivalent, eat some brown rice and prepare your favorite pasta dishes with some whole grain noodles.
Ride a bike to work and walk as much as possible. This will be easier if you find a new hobby that allows you to spend more time outside. You could, for instance, do some yard work, go collect leaves in the woods or play with your children or your dog.