Here is a true story......My wife used to be terrified of flying....she would not get on a plane if her life depended on it. I got some well paid bookings to perform in Spain and Portugal which meant WE had to fly or I went on my own or we canceled letting folk down. She plucked up the courage and we went. On the flight she held my hand and actually drew blood digging her nails in as we took off......she was so scared.... It did not get much better but after quite a few flights she realised her fear was irrational. Now she flys no prob...well she is still a bit edgy on take off and landing but no more than most other folk.
The moral is simple.....what may seem impossible or too full of fear to conquer can be overcome just by plucking up some courage.
As long as you practice and know what you are doing then there is nothing to worry about. The confidence comes with experience...the more you do a thing the easier it gets.