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Should I use a cononicalcanonical link which refers to the current URL in a pagination?

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Should I use a cononical link which refers to the current URL in a pagination?

I know there are similar questions. But they either was not what I was looking for OR I did not understand them fully, therefore I am asking here.

My situation

At the moment I am using rel prev and rel next as pagination.

<link rel="prev" href="http://www.example.com/category/blablabla/page/2" />
<link rel="next" href="http://www.example.com/category/blablabla/page/4" />

I currently also add a canonical link which refers to the first page, i.e:

<link href="http://www.example.com/category/blablabla" rel="canonical">

The problem

The thing is that the first page only has 20 items (as all other pages). With this canonical link only to the first page get indexed by Google. I would like all the pages to get indexed, because important content get lost in those pages.

Should I just change the canonical link to the current URL? i.e the current page, in this case:

<link href="http://www.example.com/category/blablabla/page/3" rel="canonical">

Or should I do something else, if yes then what?