Ok some background.
Training exp: 8 months of heavy lifting
About 2 years ago I weighed 203lbs. at the highest (not weight training, just fat). Over a period of 6 months I lost ~40 lbs. of that weight through extreme caloric deficit and cardio every day. I lost a large amount of muscle at the same time. Over the next 6 months I dropped all the way down to 146lbs. with more cardio and diet. So in a period of 1 year, I dropped from 203 to 146. I realized how weak I was getting and started to weight train. Bulked up to my current weight at 158 in about 8 months. (all weights are reps of 6) Bench went from 90 to 145, deadlift 140 to 265, squat 160 to 245.
Diet: While bulking, I was eating about 2800calories, trying to get 20% calories from fat, 40% from carbs (whole wheat, veggies, little sugar), and 40% from proteins. For cutting, I assume one would just reduce total calories and keep same percentages.
Goal: I am satisfied with my strength for now and I want to add definition to my body before bulking again. I have a fear of getting fat again and I want to cut after every 15 or so pounds gain. However, I certainly do not want to loose any of the muscle I have worked on. Lower BF% with minimal strength/muscle loss.
Is there something I can read that will help me understand the basics of a cutting routine? I honestly do not know much about it. Examples of routines, cardio?, still lift heavy?, Diet?(and what kinda nutrition should I be aiming for?), etc. Anything would be helpful. I am in college learning to become a nurse, so if you want to get technical, I don't mind. I'll ask if I don't understand something. Thank you for reading.
Edit: If I should post this in another part of the forum, please let me know.