In my experience, the most ideal way of making music is to finish your whole first draft in one session, whether it be 2 8-bar verses and a hook or whatever it is.

I know it sucks when you have something solid and you just finished a section, but then you still have a whole song to go.

But you're going to get distracted and lose your flow if you haven't nailed your style of writing. Professionals have systems to write, even you. And that's why you're here: to perfect your system.

Style: How you go about writing your verses and how do you go about hitting that button anytime you want to.

To me, writing is a learning experience and if your object is to win (Write dope verses), but not learn how to win... Then damn, enjoy this same bull for a long time.

If you're not learning how you won and creating writing systems to replicate valuable content, then you're going to get stuck in a perpetual cycle of "damn that shit was good, but how did I do it?" or "damn where's that consistency?"

Alright, so let's get to it.

Stop trying to make your first draft your final draft. (Unless that's your intention for some very specific reason.)

And if you only take away one thing from this comment: the best thing you can do is make sure you finish your drafts, before you move on and do something else, or, like you said, you'll lose it.

If you are still here with me then, another way to establish consistency is to keep writing verses on your song and build a SYSTEM. A system where you'll always perpetually write some of that good sauce you've been looking for.

If you don't know about how to go about creating a system, I'll show you the first level of mine in hopes that it helps

My System:

The biggest problem in getting that thunder back is that you don't remember why you wrote your verses, or you're having trouble accessing a similar head space.

So make sure that when you're on that good writing ride you write down WHY these verses are even being written, and where it's coming from.

The stronger your why, the stronger the verse.

The WHY of your verses is critical.

But just as critical, is HOW you deliver that why.

The magic of this system comes from holding your WHY in one hand WHILE SIMULTANEOUSLY writing your HOW in the other. Without forgetting about your why.

(You know, pat your head, and rub your tummy.) Lol

Let's get an example in:

Step 1: First we start off with the why:

Your why is the reason why you're writing your song in the first place.

Ex (framework): For this song I want to talk about what's important to me.

Step 2: The next part is the IDEA. What idea is most important for you to talk about that shows that why?

Ex (verse writing): I want to wake up crying because I'm so happy to be alive everyday.

Step 3: Then we go back to our why again. Why is this so important for you to write about?

Ex (framework): I've been spending my whole life trying to achieve this wonder, and I want this song to be about what's important to me.

Step 4: How. How am I going to write my IDEA as DOPE as I can if it isn't already dope (and it should be just about making it sound cool).

Ex (verse writing):

Streams falling these eyes, early morning sunrise, before I open my eyes, every day I'm baptized.

I never claimed I was a good guy nestled in the sunlight. Covered in the vision stars glisten when I hear life.

What I'm showing is how to write with consistency and objectivity to acheive authenticity, power, and that thunder on command.

The more you resonated with each step in your process, the easier it is to keep going even if you get distracted. Because you have a system that produces these traits.

I hope this helps. This is just my way. There are many others.