MACRO SPLITS
Firstly, hitting macros is knowhere near as difficult as some might think.
The most important place to start is obviously with awareness to what foods have what macronutrients within them.
The image here does a pretty good job of helping with that.
PROTEIN: there is a fundamental requirement for more protein (amino acids) in the diet to the degree that we increase training / exercise & push ourselves physically.
Whether this is obtained through animal flesh or by combining proteins from a vegetarian style diet is a complete personal preference.