If you’re working out with the same level of weights, then whatever muscle mass you have is what you’re going to get. Muscles build in response to stress. If you don’t stress the muscle, they don’t “rip”. Ripped tissue is repaired and becomes bigger.

Figure that you probably need about 70-90 gm of protein a day (roughly 2 chicken breasts). You can eat protein supplements by the handful or glassful and it won’t make a difference if you don’t “need” the protein. At that point it’s just extra calories.

You’re a little thin for 6′5″ so maybe focus on adding carbs and additional snacks during the day. Good food, not junk.

To build muscle with weights you have to work the muscles to the point of fatigue — where you cannot do another rep. This is done best by lifting heavy weights, done very slowly, so you can only do 10-12 reps. Wait 48 hours between workouts. As the weight gets easier, keep adding to keep bulking.