Intubation expertise

How many intubations ( Dl ) did it took for you to have 90%+ success rate on the first pass? I'm currently on anesthesia rotation and I feel that I may be the worst resident they ever had, after approximately ~20 attempts, at best I'm able to get 30% of the tubes. I'm constantly trying to seek feedback and try to modify/improve technique in some way, though now I started to think that I may be don't have what it takes to become truly proficient at this procedure.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Anesthesiology Source Type: forums