When I first learned Pinchamayurasana, I fell over and over. One day I even fell over more than 20 times. I was impatient and determined. Then after 18 months of trying and falling the balance came and stayed. Yes, you read that correctly! It took me a full year and a half of trying every day to learn how to balance in a simple forearm balance. While I was learning, I used the wall once a week and mostly practiced on my own, so I never even had the chance to have someone catch me. When I went to the wall I stayed for 25 breaths to build strength. When I toppled over I picked my body right back up and tried again. My back was always more flexible than I was strong so in order for me to learn how to balance in this posture I had to learn to be strong enough to control my spine. Pinchamayurasana was a lesson in patience (I am not a naturally patient person), perseverance (I wanted to quit nearly everyday) and ultimately a lesson in self-confidence (I had to learn to believe in the idea of my own strength). Every posture has its own time and its own lesson for each person. They key is to be willing to put in the work whenever you face a moment of difficulty, pain or suffering.
You have to let yourself fall.
Forearm Balance - click pic for elephantjournal link.