If the whey protein that you took previous works, then there is no reason to change I think.

read some actual beginner guides mate

i found these few keywords in your post and i really suggest you spend 2 hours and read something before asking questions like which protein to take, lose fat gain muscle at the same time, and muscular but not too big kind of bull shit

There are programs like 3 days full body, stronglift, PPL, 5/3/1, PHAT and others.

just choose one that you like and start lifting

If you do not know how much you are eating, what you are eating, supplement doesn't matter.

Calorie intake, macros breakdown.

Take Amway!
they say other powder got steroid , drink will get kidney stone     
eat chicken got antibiotic, eat that will get cancer   

chicken and eggs

What about fish, beef, mutton, pork?

Do what you want mate, but I am leaning towards chicken thigh and drumstick.

Chicken breast + eggs + brown rice + veggies + ON whey + Creatine + Oats

Eat accordingly. but ideally calories intake < calories burned to lose weight

roughly like that lahh.. cheapest option already...

So who said fats make you fat? Who said carbs make you fat. Those are not culprits. Over eating is.

Not sustainable in the long run. Unless you dont mind eating dull food for the rest of your life.

Apa salahan nasi bryani, kari ayam, kari kambing? Took too much fats in that meal? Reduce the fat amount in your next meal. So how much of calories are you taking now?

Whey protein is the easiest digestible protein which is good for pre n post workout.

and its actually the cheapest protein available.

rugi lahh bro kalo x guna