If there’s a few of you doing it in the same house hold the meal prep should be quite easy idk how many you are but assuming 3 each take a day to make a meal that feeds 6 everyone eats that over 2 days lunch or dinner if you don’t plan on eating loads of protein with every meal get protein powder have 1 of them a day doubte you’ll need 2 for what you’re doing… Also very important since you’re at the start of your gym journey don’t over do it I’d recommend 3 day a week lower body, upper body then cardio or add cardio to every workout and do lower and upper body don’t bother with a hard routine to start with all you’ll do is wear yourself out.