i am 17 yrs old and am currently 220 pounds and want to trim out my stomach. i can see the outline of a 4 pack but not at all as noticable as i would like. i just ended my bulking diet and was eating between 4000-4500 calories a day. how much should i bring my calories down to each day, but i also dont want to loose any muscle while trying to tighten my abdominals. I also recently have taken fruits out of my diet, is that a good idea?