I have been a composer for 30 years or so and have definitely sent many "children" out into the world. Some survived, some even prospered, others came home and are now living in the basement.
It is an intoxicating experience to hear one's work performed, Its worth all of the effort (and sometimes heartache). Practice makes perfect, so stay after it and try to have faith.
All best to you and other budding composers (which I still very much consider myself to be). JS
a couple of my pieces: Jonathan Schwabe