[GECEDEANY]

Not sure whether below is understandable.

When we think, we lose awareness.
When we have awareness, we do not think.
However, before we speak, we need to think. So, we have to lose awareness by doing this.
But if we do not think, we cannot speak. What should we do?

Someone tries to slow speaking and slow thinking so that his/her awareness is able to catch them on time. However, it is not the correct way. The correct way is that we practice our awareness to be faster so that our awareness will sufficliently fast to catch our thinking and speaking.

You will understand my comments by practice only. If your awareness (Sati) is sufficiently fast, you will be aware for each sentence you say, and you will be aware of each thinking for each sentence before you say.