How do I prepare?

So I have been looking through a lot of posts regarding self prep here but I wasn't able to understand much.

I want to prepare for Clat without any coaching (if needed online).

What I was able to understand was:

• I need to read newspaper and aeon articles for reading speed, vocabulary and general knowledge.

• and buy a mock series from an institute like LE or some other.

What else will I need to do?