“Where do you get your ideas?”
The point is, everyone has ideas. All the time, every day. Having ideas is part of the human condition.
The right questions might be:
Expose yourself to new entrances and situations, and challenge yourself to find more interesting ideas?
Push yourself further with the ideas you have, making them more complete, move them from intuitions to notions to ideas to theories?
Do you publish your theories, share your reasoning and have your ideas collide with the real world in the service of improving things?