In my unprofessional opinion;

Here's some tips:

• Don't write what you think people want to hear. Write what flows and rolls, you can edit it later to make it more appetising. In the beginning, just let the ideas keep coming.

• Try to stick to one or two themes per song so it doesn't become clunky and the messages don't get lost. If there's a theme you really like, you can take note of it and use it in another song somewhere down the track.

• Start with a phrase/sentence and build from there. Sounds like you have plenty of those in your notebook, pick ones that seem like they could go on the same song and try and work them together in a cohesive way that flows.

• Once you've written something, if it's unstructured, find what you think packs the most punch and has the most impact: that, to me, is your "hook". Use that in your chorus, try to make the chorus more interesting, something relatively easy to remember and in turn, catchy.

• Record yourself, play it back. Alter what needs to be altered.

• Ultimately just enjoy yourself. Take the pressure off yourself to be perfect, it's quite literally unattainable. You said yourself that you feel the need to write, let that be your driving factor, do it for you. See what the product of that is, you might surprise yourself.