Gave up 2nd day

I started this diet yesterday. Gave up today. I believe this diet would have worked if i had carried it through. I am a vegan so i used the substitutions list on their website to make the diet vegan (e.g. tofu instead of tuna). The problem was that some of these substitutions left me realllyy hungry all day and couldn't help but eat on the 2nd day. I was constantly hungry. 1/4 cup of seeds does not adequately replace 1 egg.... i believe if i wasn't vegan this diet would have worked but i have strong will power to be vegan and i still wanted to binge the whole time.