👋 Hey, I recently sent off a CS personal statement.
I've never considered myself particularly mathematical and that's reflected in my projects. Instead of complex algorithms, I explored topics outside of my A-level syllabus such as token authentication and asynchronous operations (not that my specific topics matter more than others).
The point of a personal project is to demonstrate that you are able to independently self-study and put your knowledge to practical use, and whilst that's incredibly important for a CS degree, being able to conclude from your projects is almost more important than the project itself.
Don't forget about wider reading too!