I guess I have to learn how my body reacts. Is it true where we don't have to eat 6-8 meals a day...just as long as I hit the macros for the day?
Yes that is true at its fundamental level. Your total energy and macronutrient intake each day is the most critical component and will make up for the vast majority of your progress.
Now research is finally starting to show (as well as ample anecdotal evidence has shown) that meal timing, especially timing of protein to maximize muscle protein synthesis throughout the entire day, is important.
Now it is not something to obsess over because like I said, the majority of your gains will come from consistently getting all of your macros and calories in daily.
BUT I do believe we can optimize muscle growth when playing with meal timing - something like consuming a meal every 2-5 hours that contains 30-40g of protein to simulate MPS. If we do this throughout our day we will activate MPS more then say eating only 2-3 times a day.
But that won't make a night and day difference - the difference would be seen over the long haul.