Welcome to the group. The best advice I've heard is to look at it as right sizing your portions, not as a diet. A diet is inherently something you stop following when you're done, but you want to eat the right portion sizes the rest of your life.

There's a motivation and support thread, as well as a weight loss "challenge" thread that both offer accountability to the others in the group, and support from others going through the same process with you. If nothing else lurking in the forums can help with motivation as well.

I try to find ways to make the process of losing weight fun; try on clothes from the past that I didn't fit in when I started, try on clothes that fit when I started (now not so much), dress up on the weekends, push myself to go further when run/walking or biking, see if I can estimate what I should have lost vs what I did lose for a week/month, etc. If it's not somewhat fun or engaging then it's harder to maintain a constant deficit, and when you're done (if you're like me the last time I lost weight) you'll not maintain your newly formed habits.

But anyway, welcome to the group.