The regulas theme allows for creating sub-pages which are linked to the "parent" page. This may be preferable to copying and pasting into one very long and getting longer all the time page.
Just to clarify, the sub-pages are listed in the sidebar. Regulus doesn't collect all of the sub-pages to the parent page (I misread TT's post and thought that might be how it works).
I'm curious about whether we can use pages as sub blogs or not. For ex.the front page in my blog can be a regular blog on my daily life and I create another page and this page will contain posts about news from my work.
Can I do that?
Can I say that post this message to this page or should I edit each time the page if I want to write a new thing on it?
You could put "Personal" and "Work" tags on the posts, and then when giving out the URLs use me.wordpress.com/tag/personal and me.wordpress.com/tag/work