This is akin to last week’s words of wisdom about being original. I will refer you back to the comments on that post, since that would be your design.
If you have an idea about something, work at it. Maybe you have an endeavor, a hobby or something that you enjoy. It may very well be that within that lies the seed of design for your expression. Seek to develop your own personal expression.
Where can you take that and what can you do with that? It is sometimes very difficult when you work for other people. However, you do not work for them 24/7. You have your time off. Create a discipline and set up a time to investigate those things you want to do. Don’t let anyone talk you out of it or tell you it is impossible. Never let anyone talk you out of whatever it is you want to do or be.