The more you can define what it is you want, the more likely you are to achieve it.
Unfortunately, an idea or a solution can seem a lot clearer in our heads.
If you can clearly articulate what you want to others, then you will clearly understand it yourself.
Whenever you have defined a problem or have considered a solution, share it with 2 or 3 people. Then have them explain to you what you’ve said in their own words.
If what they say makes sense, then you’re in a good position to move forward. If they can’t clearly articulate your message, that means your thoughts need to be clearer in order to make reasonable progress.