I am 15 days out, the first week for me was hell. I was uncomfortable, thirsty and grumpy. The second week was a million times better but I was still tired. Finally I am feeling normal and getting my energy back. I am down 25 pounds!!!! I love bumping into friends - the reaction of losing weight is amazing. No regrets. Just have some extra help and know the first week sucks. You will do great!