What specifically are you afraid of?
Complete the songs first .... let the music do its job :) ... But as of going full time Musician is a bit risky atleast in my country .... :)
I learned a long time ago, and I have been writing songs since the 1970s, a song is never finished, just enjoy, go and do it!
You shouldn't be scared of who you really are or want to do, just do it god damn it