You need to understand that when it comes to meal planning, it's important to plan ahead and don't eat on the run. If you fail to plan then you will more than likely NOT follow your food regimen!
Who wants to eat boring stuff!? If you can handle eating the same foods ALL the time with little to no variety then have at it! But if you're anything like me then you will want some taste in your life! There are plenty of healthy recipes online or you can purchase my meal recipe book here. My book has 50 macro friendly meals and everything is laid out for you!
It's very important that you track your food. Some say not to do it, but if you are starting out I highly recommend that you know what you are putting in your body and in what amounts. As you become advanced, then you may be able to gauge things by how you feel and look. However, initially it's important you track the data! If you have the data you can then make adjustments to your food protocol, but if you don't then you won't know what to do.
4: FULL STOMACH
Always go grocery shopping AFTER you've had a meal! You do not want to go while you are hungry. If you do this, then chances are you may end up buying things you should NOT have. Never shop while hungry and always shop while full (or at least after your hunger pangs have been satisfied).
5: PREP DAY
Take a day out of the week and make it the PREP DAY! This way you won't have to think about it the entire week. I would say to do this on a Sunday. Every Sunday make all your meals for the week so you are ALWAYS prepared, which goes back to number one: PLAN! You can prep every few days if you prefer, but I have always found it easier to do it all at once.