I am not an expert, but I lost over 60 pounds in 90 days. And I think everyone can loose that weight in 90 days. My friends and my sister helped me. I myself let my brain come up with idea to loose weight. To me loosing weight is not cracking a hard nut but just keeping few things in mind and these things comes from common sense. Yeah, I must say most of them, because I myself use my common sense saw effect. Initially it was a night mare when a thought come across in mind of doing exercise day and night without a meal. My sister read my frustration on my face and took to new life.
She is my process partner and a mentor. I am listing all things I take care of through out the process in points.
1) I brought a digital scale:
The first thing my sister did for me is she brought a digital scale and she has a valid reason for the same. She believe and I too in buying a digital scale before starting a diet that is accurate to .2 (two-hundredths of a pound). I will explain why below (I have seen effect practically). I also recommend either buying a scale that can record your daily weight, or manually logging your weight everyday