Ok, so I have been killing myself over the last week trying to write a song, and i cant hardly get a melody that i like, I am trying to right Rock songs, newer rock but with an older sound, none of this recent rock coming out now, but anyways I am so worn out by trying and i dont seem to be getting anywhere, all the melodies i come up with are just random melodies, its like the only way I can get a good melody is if I get lucky. Thats how I feel I wrote my first song which is the only one I have written, I feel it was luck. What can I do???