I know there are similar questions to this, but they either did not cover what I was looking for or I did not understand them fully, therefore I am asking this 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 situation is like this:
The first page has only 20 items (as all other pages do).
With this canonical link i.e to the first page, only the first page gets indexed by Google.
I would like all the pages to get indexed because important content might get lost if they are not indexed.
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 would it be?