Ronnie Coleman said it best: “Everybody wants to be a bodybuilder, but nobody wants to lift the heavy &^%$ weight!!”
In order to gain mass, you must move mass. Look at one of the masters Konstantins Konstantinovs deadlifting. Look at how solid his form is in lifting. Look how he focuses before he lifts and sets himself. By the way, he didn’t gain the mass by doing failures, I’m sure.
Have you ever done deadlifts or squats? If so, why did you start them? If not, why not?