Order of Importance: Coaching Skills/Marketing Skills/Mindset

I’m currently building my coaching practice, 10 months in. In looking at programs/masterminds, I wonder what’s the order to focus on, what’s most critical? Do I focus on my coaching skills, my marketing skills, or my mindset first?

My initial thought is mindset because when my thoughts are serving me and in alignment, everything else will fall into place.

Thanks for your feedback!