You can add this to your current butt workout as a finisher to help build-out your hips.
However, if you want to do this routine alone, do it 3-4 times a week and make sure that you’re eating a calorie surplus to support muscle growth.
Lastly don’t rush through the exercises. Take your time and perform slow and controlled movement. The slower you go = more challenge for the glutes = MORE growth!
Give it a try!