Be careful about overthinking your song too. Singing is a passion, and passion is supposed to be something that comes from the heart more so than the mind.
And finally, remember the final two most important steps: ask other singers and songwriters for feedback, and don’t be afraid to fail. You need input from others to receive an unbiased opinion of your work, and you have to remember that failure is inevitable and some point or another, but you can’t be so afraid of failing that you never start.
In the end, these are the most important tips to remember when it comes to writing a song. After all, these are the tips provided by the pros, and no one knows more about writing songs than the ones who do it for a living.