Hey @bexxarts ,
Appreciate the thanks!
The challenges are hopefully there to help challenge yourself, and take you another step further down the road on your Blender journey.
I used to be the same, lacking in ideas.
I started doing more research on the things I wanted to create, and would mix and match ideas from different references.
I think its important to know, or at least do some research, on your subject. Every worthy 3D artist will tell you to use reference images, or concept art.
The more you do the more you will have your own ideas.
Trawl the internet, sites like Pixabay, Unsplash are good sources for free images.
Hope this helps.