Pec Workout

I want to be in top shape and build muscle and loose fat for vball season in June want specifics please ..like a workout plan or something..i want to loose stomach fat and gain muscle ..quick results preferred

I’m a teen, and luckily for me I have always been on the Light/Petite side but for lacrosse I need some good ways to easily at home build some muscle so I’m not thrown off my line with a brush of an elbow if you know what I mean-any suggestions?