Lots of people here have given great advice on food, calorie tracking, etc.
One thing I would recommend is get into a routine. Get up and get to sleep at the same time every day. Get a good night's sleep - 8 hours works for me, you could be more or less. After awhile, you'll wake up on your own without the alarm clock. Get into a "work" routine even though you currently aren't working. Spend a set amount of time looking for a new job or spend that time making changes in your life to get a job - training, apprenticing, school, whatever you think you need. Finally, get into a routine for exercise. It could be riding, walking, running, weights, or a rotation of all of these - whatever you want - but stick to the routine. The idea here is to keep yourself busy, occupied, and away from the fridge. Finally, don't have snacks/junk food in the house. If it's not there, you can't eat it. About your comment about fruit - I don't think I've ever met someone that got to unhealthy weight levels by eating fresh fruit. So if it's a bag of crisps or an apple - eat the apple.