Cathedral Windows is a pattern that you can have something, even if you don't finish it!
Here's my story, that perhaps will inspire you ....
When I made my first quilt, it seemed somewhat impossible for me as a beginner.
I chose a scrappy sampler pattern.
Decided, if I only did one block, I could at least have a pillow cover.
Done .. and two would give me a smaller runner
Then, three a larger runner ..... and four would be a nice topper.
Next it was .... six a small baby quilt.
Get the picture?
Guess what? .... I finished the quilt at about 100" square!!!
Not bad for a pillow top!
So go for it and I'll look forward to watching your progress!