In making a song, you should have the willingness to make aa song.
They say.... Success is 1% inspiration and 99% perspiration.
In this type of topic , you shoud discover how things made possible by the study of science.
So I am advising you to go to a place, silent and you are comfortable with. And start conquerring the world of just you and science, the song you want to make. :)
And make sure you're the one to make the song so that in the end you will be proud of. That's all I can advice because all you need is determination and positivity!