Hi and welcome, I am glad you have decided to change your diet for the good of your health and I hope you get spectacular results just like your friend.
To begin, I wonder if it would help you to focus on one meal at a time. Either, whichever is easiest for you to change, or start with breakfast seeing as starting the day eating primal makes it easier to keep up the healthy eating for the rest of the day.
You will do well though to straight away start avoiding all processed products (food and drinks), the processed oils, and wheat.
Think about basing your meals around meat (I thought I already did this until I tried it and realised that they were really based around rice or pasta etc). Your husband is bound to love this.
Some of my standby meals use the cheapest and fattiest cuts of meat. eg a rich and tender beef casserole:
Slice onions and carrots and place in the slowcooker. Cut the meat into chunks, toss in salt, pepper (and other seasoning if you like eg chilli or curry or herbs), and stir through a pottle of tomato paste. Add to the slowcooker and leave all day, stirring once if you remember. Before serving, drain off the liquid into a small pot and boil on the stove until it has reduced in volume, it will become much more intense in flavour also. Stir the liquid back into the meat.
Serve with green veges or buttered cauliflower or baked pumpkin. Your husband could also have rice or potatoes and green beans if he really wanted.
Try to make enough so there are leftovers, then you have tomorrow's lunch covered. Breakfast could be scrambled eggs and there you go, a basic meal plan for 24 hours. Good luck.