Fuck a diet, eat somewhat healthy try to maintain a protein goal of 1 gram per pound of your weight. And creatine is an amazing tool just ensure you do five grams of creatine monohydrate everyday and drink lots of water while using it. Diets make it too complicated and this is not a short time fix this a long haul lifestyle change. I have been in the game for over a decade and the simpler you can make it the better you will be at making it life changes. Small steps at a time