Diets do not work for the long haul. They can and have given people results but they always seem to lack the sustainable nutrition principles you need to live a life that does not revolve around counting macros, calories or obsessing over what time you need to eat next. 

You do need to understand nutrition. 
You do need to create a plan that works for your schedule.
You do need support while you try out different methods.

And you can find that all here!