If you get overwhelmed with a big idea or a big goal and your mind starts racing on all the possibilities and directions you take.
I suggest having all of the thoughts, and just do nothing. Just forget about them.
The reason why is that not all of our thoughts are valid/practical/sensible.
What happens is what I call "thought sandwiching." Thoughts that are relevant are accompanied by thoughts that are irrelevant/not as valid. But because they all came together, we might group all of them as "good" or "actionable."
In reality, most of those thoughts are nonsense, impractical, impossible to execute at the current moment, or just clutter distracting you from the most crucial aspects.
So I suggest, allow those thoughts to come but don't put pressure on yourself to act on them or do anything immediately. If you give it time, you'll find that most of those thoughts are completely forgotten and only the most crucial, actionable ones remain. Those are the ones you should actually look at first.
Don't worry about forgetting something. A lot of those thoughts are contingent on other things being true, so there's no reason to try to remember F when you aren't even sure about ABCDE.
Once the thought rush passes and the adrenaline dies down, you can actually take stock of what you have and what you're realistically capable of. The kicker is that often, just doing a few small things actually gets you quite far in your pursuit!
But that clarity only comes if you allow the noise to clear!
I think the psychological trap we fall into is feeling like the problem is MORE urgent because we're putting a lot of energy into it. But it's just a trap! Just because you thought of potential solutions doesn't change anything about the actual problem. Especially if it's been a problem for a while, a few minutes/hours/days/weeks is unlikely to move the needle much so there's no need to rush into implementing a solution.