Create a space where you can work that feels good to you, where you can sit and write without being interrupted. Play the kind of music you like for 15 minutes for inspiration, and then turn off the music and start to write whatever comes into your mind.
Start a list of interesting thoughts you have. Add to the list everyday for two weeks. Write down the thoughts, and then go to your writing space with the intention of writing something, whether it ends up being something you decide to keep or not. Set a timer and write non stop for seven minutes. Write whatever comes to your mind without judging whether it is good or bad. Look over your notes to see if there is anything that catches your interest.
Take a voice recorder with you wherever you go to capture ideas and tunes that go with those ideas. Be prepared to capture the idea as soon as the idea comes into your mind. Practice speaking into the recorder, and learn how to save and retrieve what you have recorded.
Write what you are passionate about. Write about being mad, or being in love, or losing someone. Other people somewhere, are going through the exact emotions you are feeling. Writing about what you are feeling is something others can often connect to.
Use a voice recorder to record your end of a phone conversation to determine what you are passionate about. Play back your conversation and listen for interesting things you say, catchy expressions and how you phrase your sentences. Watch for tone, and when you raise your voice, or when your voice sounds excited. Write down the things you think might grab an audience's attention.
Play an instrument, if you know how, and start singing or talking as the music moves you while you play. Capture what you sing with a voice recorder or have a friend write down the words for you. Play back what is on the voice recorder and write it down. Look over the words to see if you can discover an idea that will lead to a song. Start working on your lyrics from that point.
Write a rough draft of the words to your song, and then put the draft away for a week. At the end of the week, take it out and look at it. If it still grabs your attention, work on it some more.