How to make bread for Wordpress if you need two different pages for posts?

Question

CMS

Hello.
What you need to do - there is a menu in which there should be two sections "Section 1" and "Section 2". They have 4 subsections. As far as I know, you can define only one page for posts in Wordpress. I chose this page "Section 1". Then I added 9 headings. 4 of them are without a parent category and are attached as links in the Section 1 dropdown menu. Then there is one as Section 2 and it has 4 child categories. What is the actual problem - I screwed Breadcrumb NavXT and when I go to some section on the posts page (Section 1), the breadcrumb is shown as I need Home > Section 1 > Section N, and in the section that is in Section 2 - Main > Section 1 > Section 2 > Section N.
Don't get angry, this is the first time I've started my blog and I don't know how to properly create the structure of pages, links and other things. Share a smart guide on how to make the right page structure with several blogs. As they say, give a man a fishing rod..
Thank you in advance.