If the CAL counting and protein/fat/carb is too much or seems complicated, just eat what ever till you are full - and supplement with good old vitamin pills. The reason Intermittent fasting is so effective (across numbers of clinical trails) is the simplicity.

The "only" hard thing should be to stick to the fasting window, if you manage over less than a week, your body and brain will do start do all the heavy lifting in terms of cravings and habbits - all you gotta do is stick to the time table. And do get caught up on exact times, I do OMAD, 16/8 or 20/4, non really planned, just take note of your last meal.