Focus within focus

After being in Scholars for a short time, but exploring the wealth of resources here, I’ve realized that I have to focus on one thing at a time. Right now, that is weight loss. Inside of focusing on weight loss, I’m focusing on my absolute commitment to follow the plans that my past self made for my present self, even if my present self’s brain insists that it’s not necessary and it doesn’t like it. But Is it OK to focus on writing a food plan for my tomorrow self that I will follow, even if that will be slower weight loss? Should I practice eating only what I’ve written down before I get more aggressive with my food plan? Or maybe am I thinking about it wrong and maybe I don’t have to be aggressive, I just have to adjust? I don’t want to make a food plan that won’t work.