I practice for more than 10 years already, and, honestly, if I were to give one (1) most useful piece of advice about the way I do my spellwork, I’d say that for getting the desired outcome, preparation and planning for the spellcasting is just as important as the actual ritual, because the preparation is already a part of the spellcasting. You’re already working on the manifestation of your desired outcome when you’re simply drafting and preparing, because you begin to think about it and focus on it.
Don’t neglect the drafring and preparation if you really want the spell to be powerful enough to shift the reality.
Spend some time just making a draft of the spell in your journal. Divide the page on individual aspects of your desired result. For each, write all your ideas, possible correspondences, any things that you think might help with this certain aspect of your desired result (”make things faster = fire?? burnt matches? clock hands???” or “new job means new beginings, so should definitely cast it on the new moon. check the day of the week correspondence later. dont forget to use tarot imagery, the fool definitely will come handy”, etc).
Be as messy as you want, it doesn’t matter, because, again, by focusing and preparing for the cast you’re already doing the half of the work.
Carefully and mindfully preparing for a spell alone usually provides, like, 50% of the desired result for me.