Well, you really need to specify your problem better.
Are you customizing your core template files by coding?
What do you mean by “both pages I created”? Do you create them in wp-admin or do you make your custom templates for this pages? (If you are new in WP then i doubt it)
Becouse – just by add new pages – how you display posts on that pages? When you create just page, you don’t have loop to display posts by default – you need to add shortcode to it.
I think what you are talking about are archives, not pages. If you want to display all posts from particular category, you want link to that category (for which WP automatically creates an archive) not to page.
You need to learn WP anatomy (here is nice infograpic).
Of course, your theme may have different rules – if so, then why don’t you contact support for that theme?
I want to help you, but i need to know more.