Just saying you want so much protein and so much fat isn't enough. You need to be aware of things like needs for calcium and phosphorus and that they need to be provided in balance. Then come the other nutrients like B vitamins, magnesium, etc.
There used to be forums for raw and cooked feeders. They've probably all moved to Facebook now, which I don't do, but I bet you can find them and get help there from people who feed those diets.
If you're the casual sort, you feed 80% muscle meat, 10% bone, and 10% organs (5% liver and 5% other secreting organs). Some add veggies, some don't. The meat needs to be varied.
If you're the compulsive, detailed oriented sort, you do a spreadsheet which has the needed amount of each nutrient, calculate how much of each nutrient (including fat and protein) each thing you feed provides, and come up with your diet that way. It only took me a few weeks.

You can pay dog nutritionists to do that for you, of course, but you have to be careful they actually know what they say they do. I used Monica Segal's
K9 Kitchen to get started.
There are also base mixes you can buy and and only provide the meat. They're even more expensive than doing a raw diet on your own, but they're easier and take the worry out of whether you're providing the right amount of every nutrient.