Coaching Friends vs. Letting Them Buffer

I’ve always had a deep interest in personal growth along with a strong desire to teach and help friends with what I’ve learned. I know adults need to process what they want and I should let them be who they are, but it’s very challenging to see them stagnate and buffer. The more I learn about the model and how it can change everything, the harder it is to watch self destructive behavior in my dearest friends. I’ve shared Brooke’s Podcast but I don’t want to be annoying, or tell them what they may not be ready to hear. I know coaching friends is probably not a good idea, so what should I do when they vent, complain and act as if they have no control over anything?