How do I become a bodybuilder and if I do can I still be a high school baseball player?

How do I become a weightlifter I'm 15 6' and about 208 maybe more idk but my bench is 220 squat well it sucks because of knee problems but I still want to play baseball so here's my upper body workout bench Press 10-8-7-6-5-3-2 105-135-145-155-165-175-185 the close Bench at 115 3 set of 8 then military press 70 lbs then tricep pull down 112,113,114 then lat pull downs front (80-90-100) back (70-80-90) then flat flys with 40's and dumbbell curls 35's and finally preacher curls 25lbs and on legs days it's squat 3 sets of 10 at 145 and then leg extensions 70-80-90 3 sets of 12 hold for 2 seconds then calf raises 5 sets of 20 and finally deadlift 145 3 sets of 10 I take Amino acid stuff on upper body days in the morning because it gives me energy that's 3 scoops then after my workout I take gold standard 100% whey protein then another scoop of whey at night then on leg days I take whey in the morning after a workout and before I go to bed