Peanut butter is a vile abomination against all that is good in spreads.
Just eat a heap of nuts.
Don't worry about exact quantities, everyone's body is different. Just eat lots of fresh fruit and vegies, nuts and beans, and some meat, fish and/or dairy. If you want to get smaller, eat less starchy stuff like spuds, rice and pasta; if you want to get more muscles, eat more starchy stuff.
Avocados really go in with the "nuts" rather than the "fruit", by the way.
Eat according to appetite, see what results you get with your health, strength, fitness and physique, and adjust the eating to match it. Eg "I am looking a bit drawn and I have no bum anymore, must eat more spuds," or "hey I can no longer see my feet, must eat less spuds" or "I am tired all the time and can't face the workout, must eat more rice."
It's like riding a bike, we can't give an exact formula for balancing it, you just have to adjust as you go.