wanna make sure this is for me

cutiepi3131

So I have been lifting weights for over a month. My diet hasn't been great so I've only noticed muscle building in my arms. I'm interested in this way of eating and am curious to know if I can jump straight into doing tdee at 15%? I haven't been on a low calorie diet in a long time. Also, I'm wanting to get a better idea of what to eat. I see I'm supposed to eat certain percentages of carbs, fat and protein but I don't see how this translates into a meal. Any help is greatly appreciated!