i like to keep a small notebook handy, or even just my notes app (but i think it’s better to do this handwritten) and whenever i have an idea i just jot it down really quickly. it takes some of the pressure off to have my ideas on paper and from there it’s easier to do some brainstorming and see where it leads you. this is a pretty simple idea but i’ve found it really helps me whenever i feel stressed out abt starting a creative project. hope this helped!