its all diet as Im sure you know. Calories in Calories out.
I couldn't gain weight for the life of me till hired a nutritionist and realize just how much food I needed to eat! ITs changed my life. I have had a guy doing all my meal plans and workouts for 4 years now and I am in the best shape of my life. I have done many bulk and cut cycles over this time and achieve crazy results for me. Very much recommend. there are a lot of people out there the guy I have used is
https://nicpalladino.com