Hi Emma,
Dont apologise. This diet is not an easy one and it affects us all in this way at some point. I would say perhaps try and stick at it for a few more days as it does get better. There comes a point, usually around day 4-5 I think, that you get more energy and the hunger subsides. The headaches go and mood improves. I found day 2 quite hard, I am now on day 6 and coping well. I don't feel hungry and look forward to my shakes. Something that on day 2 I would never have thought possible!
However this diet isn't for everyone and if you feel WW would work better for you than that's a choice you need to make. The ultimate goal is to lose weight so as long as you are happy that's the main thing. I wish you luck on your weight loss journey whatever you decide x