How should i layout my personal statement?

It won’t be very personal if you try to follow a formula to structure the content.

Yes, bu aren't there certain things I can do to make my PS better structured, without completely following the structure of others? I heard it's preferable to have 20% of your PS made up of extra-curriculars for example.

short, but engaging intro encapsulating your interest in computer science

the bulk is supercurriculars - paragraphs on different topics of CS you are interested/have read around in?

if you have relevant ones then put a tiny paragraph at the end of extracurriculars but this is unnecessary in my opinion

The way I did my personal statement was I made a list of all the things I've did that are relevant to computer science. I then made paragraphs in detail on each point. I then merged similar paragraphs together. I then took out unnecessary information. I then reformatted into an intro of what got me interested and some body paragraphs and a lovely conclusion as to why I would be a good fit for uni.

Ofc this resulted in a practical heavy personal statement but I ensured to keep it flowing and white how each thing ties into my love for CS and what skills I've gained. Remember you have to keep a quick pace and don't waffle at all. It should flow quickly into each point to ensure you don't bore the admissions staff. Made sure to make it unique and get them to read on and make it personal.

This was my personal approach but it's worked so far with 4/5 of my unis with 3 Russel group and Lboro giving offers

Here are the questions i have about my PS:
How many paragraphs should I do?
What should each paragraph be about?
What percent should each paragraph take up in my PS?

Any help would be greatly appreciated (this PS is for computer science)