I've been in the creative arts all my life. Music mainly although I've done other things. You're probably getting mechanical. Creativity is about stillness and letting go of fixed concepts. When I reach for the piano,and I can listen to it,it writes all the songs for me. When I am singing,If I can enter the dimension of becoming one with the song and stop worrying about technique,the vocal flows beautifully because I'm not restricting it to my pre-conceived idea of it. Happy creating.