Step one is stop listening to "bro science"
Maybe this will help...
Over the past two weeks to today, Feb 16th, I gained 5 lbs of lean muscle, up 170 from 165 (should prob update my photos)
I have a super, crazy, high metabolism rate and last time I check I was around 6-7% bf. ...Know how I did it?
I didn't take ANY supplements (other than fish oil) no protein powders, no counting calories, no creatine, none of that stuff. Just proper workout and train hard.
As far as eating goes, I took a page from Rich Froning. I eat when my body tells me. That simple. I DO eat clean (cept for the occasional pizza and sweets). I start the day with juiced veggies, and I eat fruits for carbs immediately after workouts to replenish.
I've been doing strength training, 2 days/week over the past couple weeks. (aerobic capacity training/lactic threshold training the days in between) When you train for strength your body has only one way to respond... and that's to get bigger and stronger due to adaptation.
I don't split days. Just two full body strength workouts per week. What you may want to focus on is WHAT EXERCISES ARE YOU DOING?
Best exercises are compound movements, like deadlifts, front squats, chin ups (weighted if possible), snatches, standing barbell russian twist etc. usually at 55-75% (of 1RM) intensity. Spread your strength days apart to give proper rest and recovery.
With the right amount of reps, sets, exercises and intensity your body WILL see gains. It's no way around it. Not only will you LOOK bigger but you'll be MUCH stronger and possess functional strength.
This information I just gave you is worth gold, people pay for this stuff. Matter of fact I am NASM certified, I just like to help. If you need a more detailed program inbox me I can point you in a good direction.