I'm happy to see you getting serious about all of this. Here are a few sites to get you started. Study your favorite song writers and learn from their arrangements. For example Elton John and Bernie Taupin were a great Ballad writing team. Study Desmond Child for Pop rock and Max Martin for modern Pop. Study Dylan for Folk and Americana. Study Fagan and Becker for for Jazz/Rock fusion. I'll add a general rule that was not mentioned in the links below. Write sad songs in minor keys and happy songs in major keys. Good luck!
I've wrote a few songs, All in the style of folk music. All base on different parts of my life, The words for me always come first or at least the idea, I pick up a guitar and melody and rhythm kinda happens. I'm not sure how to tell someone how to write a song, has something to do with feeling it. What might help you is if you have a song idea in you head and you can sing it the way you are feeling it, Get with someone who does play a guitar, that might help to bring the whole thing together.
I'm the opposite way.
Writing music came very natural to me. Well with a lot of practice when I was younger.
But i couldn't put words down to save my life.
That's how it used to work in a few bands I've been in. I would write some music. And the rest of the guys wrote the lyrics.
But as in anything Practice is everything.
Hell even though I can do it well, I still every now and then write some crap music.
But I keep at it.
I have the same problem, and I’m not super experienced at getting past it but I think some relevant things to consider is that writing poetry/prose isn’t the same as writing lyrics. Having well defined meter isn’t really a strength if you don’t have a clue as to how to sing it. And a lot of the best lyrics don’t have a consistent meter or rhyme scheme when you think about it. I think I’ve read and heard that some of the best songwriters start with the music or at least a melody and sorta freestyle brainstorm the words to fit it for this very reason: that it’s so hard to take words and then figure out how to sing them.
If I was gonna get serious about trying to write originals again I’d focus on writing some good music first, at least have a chord progression and a melodic idea and feeling in mind and then write the words with the music in mind. Writing music with words in mind always made me feel like I had heard this before n I was ripping something off inevitably or it just sounded corny. The only successful original I wrote was with a songwriting partner and we started with a lyrical idea but didn’t work on the words until jamming a chord progression out and it seemed to work pretty well that way.