A video tutorial can be much more helpful than words.
Check out this tutorial from Dakota Fox: http://m.youtube.com/watch?v=AmbZS_46LaQ&desktop_uri=%2Fwatch%3Fv%3DAmbZS_46LaQ
And this one from EmotionCatcher: http://m.youtube.com/watch?v=CsiaC_XLk4E&desktop_uri=%2Fwatch%3Fv%3DCsiaC_XLk4E
The couch trick really helped me to overcome the subconscious fear I had from inverting this way, and got me to nail it finally.
Make sure you listen to your body and take it slow with this one. The unnatural hand positioning can make your shoulder more prone to injury, so don’t push it.
Good luck!