Creativity does not present itself well under stress, although you may think it does.
In fact, creativity does not require thinking at all.
“The lash may force men to physical labor, it cannot force them to spiritual creativity.” — Sholem Asch
If you think your creativity has dried up, take a walk, take a nap, go the to movies, meditate, just move off from what you are doing. If you are sitting at the computer, as I am right now, take a break, in fact, take multiple breaks. If you push and are stressed, you will not be very creative. Actually you will block your creativity.
Allow and trust that your intuition will kick in and provide you with hints and opportunities for creative thoughts and ideas to spring forth and give you a great kickstart. Record these ideas or fragments on your phone, tablet, or my favorite, a yellow legal pad.
Remember, do not try too hard. There is no reason for the high pressure you place upon yourself.
Relax and the ideas will come to you easily and effortlessly.