There's no reason to lose weight alone. Ask a buddy to support you. Make sure you turn to a friend who not only will understand the difficulties you face but can also give you some tough love if needed.
Support groups such as Overeaters Anonymous work for many people as well.
An additional support to consider is setting up an appointment with a registered dietitian. They can teach you about proper nutrition, portion sizes, and establishing meal plans that help you reach your goal.