I think when you are having a flow of energy like that, trying to channel it or focus it is tricky. On the one hand you can be really productive. On the other hand you can overload a circuit and burn it out or cause the dam to burst and flood your system. This can either be a good break from a med or a stepping stone to mania.

I think it helps to cool things down a bit so that the amount of neurons firing is lessened before it gets to a critical point. I'd try:

Some calming music
Putting my feet on the earth
Sitting in nature
Writing down my stream of thoughts and trying not to engage with any of them yet
Taking a cold shower
Eating grounding and comforting foods
Working out

I'd let it flow while it is flowing and then later refine it, select from your best ideas and then turn those into your creation.

For example, I had something like this going on a while back. I used my excess energy to clean my house. I kept a notebook close by while I did it. As a thought came up I wrote it down and then went back to cleaning. The thoughts atrived in no particular order. I just wrote them down and moved on. I then exercised and relaxed and ate good meals. I spent time outside. I meditated.

Days later I went back through all of my ideas and turned them into an outline while I was in a resting period. I will write and turn them into something creative when I feel that same flow like phase again. I'll choose from the topics I brainstormed before and free write what comes to mind for each. I'll do that for a while and then edit when the creative energy cools again.