Pagination for blog posts reloading same page [closed]

Question

$my_query = new WP_Query( array( 'posts_per_page' => 3, 'paged' => get_query_var('paged') ) );

while ( $my_query->have_posts() ) : $my_query->the_post();
    the_title();
    // more stuff here
endwhile;

wp_pagenavi( array( 'query' => $my_query ) );

wp_reset_postdata();

try this code and also increase the size of show posts in SETTINGS->Reading->Blog pages show at most 10 to 50 or 100, hope so it will help you.