I'm in my mid 20s, 5'4, 140 lbs, and wear size 30 waist - relatively skinny but I do have some stomach fat which keeps me from having a six pack. I'm also a student so I am short on time. I'd like to create a fitness schedule for myself that helps me with the following goal:
-Find the balance of being "big" or "skinny". I don't want to look skinny, I don't want to look buff, I just want to look strong.
How should I approach this? As of now, I go to the gym anywhere from 3 to 1 times/week. I usually do about 10 minutes of cardio either on a rowing machine or inclined treadmill followed by working big muscle groups by doing squats or pull ups. I keep lifting weights and working different muscle groups until I either get tired or my workout time reaches an hour.
But I have no discipline - I do the same thing every day. I don't know if I should divide my workout into different muscle groups and have a disciplined way of approaching weights.