Name and title

Hi , i would like to ask u if u know how to do do name of the category and title of the article properly

Now i got <?php echo get_the_title(); ?>

<?php
$category = get_the_category();
echo $category[0]->cat_name;
?>

in posts its ok there is name of the post and the category , but in the category it writes the first name of the article and i want to write it only the name of the category and on(for example only : Blood and sand) on index it doesnt work as well i link u pages to better understanding . (h1 on the bottom )

post – is okey
category- doesnt work how i want
index- doesnt work how i want
(i can show it on page if it will help u guys:) )
ty for your help