So because of my current job, I must workout 5 times a week. These workouts consist almost entirely of cardio and bodyweight workouts for an hour to two hours. But I am looking to put on some muscle mass. I am currently 5'8" at 140 lbs. Skinny fat but I'm looking to get that golden ratio type of body with some functional strength. I was thinking of starting out with strong lifts with some added arm work outs because my arms are tiny. Im also around 14-15% bf so I am wondering if I should lose a bit of fat first before I begin to eat big? Is this plan good and is there any diet or lifting advice I should know as a beginner? edit: sorry if this was not clear before. But I'm looking to go to the gym on top of the mandatory cardio workouts that are 5 days a week. Since the job requires me to do some body weight excersices and train my cardio already, I was looking to go to the gym on my off time in order to fill out and look better physically and get some functional strength.