How do I Bulk up and build a physique as 15M?

I'm a 15 yo teenage Boy. My height is 5'8.5 and my weight is 50kg so obviously I'm quite thin there's sometimes no strength in me. I want to bulk up and build a good physique, I don't wanna be a body builder or sum but just a bit strong. I'm Non veg but Can't eat chicken that regularly and can eat eggs. I wanted some guidance... What exercises I should do and What is the diet I should take? I can't really go to a gym but I can exercise from home. Please I wanna be fit It will really help with my confidence and overall health please guide me