A weight loss buddy can be a great aid to motivation. This is someone to encourage you, commiserate with you, and help you to stay the course.
Why do you think athletes have coaches? Students have mentors? We are relational people at heart, and it takes a special person who can single-handedly motivate themselves toward a goal.
Where Do I Find a Weight Loss Buddy?
Community-based Weight Loss Programs
Thanks to the Internet we can easily communicate with people from all over the planet. However, sometimes we may need someone to be geographically close (particularly regarding exercise).