I'm 29 years old and in good shape. I have less time to lift weights, but am finding time for push-ups and dips instead. I have set my goal to do 100 push-ups a day, 100 sit-ups a day, and 50 dips a day. Is this too much? I don't want to get bulky, I want to make sure I will be getting stronger and toned, not buff or bulky. Any thoughts on this? Thanks, Louise