How much Protein is often debated. Keep it simple go for 1 Gram of Protein per LB of Bodyweight: If you weight 200 lbs, you should be getting at least 200 grams of protein per day. You can get your protein through whole foods and protein shakes. If you are putting LEAN weight leave it at that if you are making much difference and you are training hard (real hard) Don’t be afraid to experiment with higher protein amounts. Amounts from .7 gram per pound to 3 grams per pound are quoted. Find what works for you and dont waste your money on taking to much.
Most of us would like to be leaner and become stronger or just plain want to have bigger muscles all round. I got back into weight train after a lot of years off with one purpose to negate the effects of getting older.