Move all WordPress posts to MyBB

[Lapan]

Hi.

I want to move all my WordPress posts to MyBB, but I don't know how to do that.

WordPress asks for much time, plugins, theme, and bla bla... always something you have to work on.
So I would like to move all posts from WordPress to MyBB and delete WordPress.

If someone is kind, know how to do it, please write me all steps I have to do without making mistakes.

Thanks.

[ClarkNight]

I have to buy an entire extra hosting service just for MyBB forum to be extra secure so my main website is not attached to the forum. (Hacker protection)

Was thinking; can I use my WordPress account to host my MyBB forum?

I will upgrade the WordPress first.