Prototyping is the conversation you have with your ideas.
The design process is about designing and prototyping and making. When you separate those, I think the final result suffers.
Consider spending less time talking, and more time prototyping, especially if you're not very good at talking.
Artists are in the imagining prototyping business. Society needs people to be out there thinking of what might be. That cannot be something we just delegate to politicians or technologists.