WordPress show posts within while() loop based on condition - php

Question

I have 8 posts for example.
Here 3 posts out of 8 posts is sticky and 2 posts has paid_placement meta key out of those 3 posts
Now, within while loop I want to show:
1) those posts on top which has is_sticky() === true and don't have any paid_placement meta key.
2) After that those posts which has is_sticky() === true and have paid_placement meta key.
2) After that custom post type posts ( pro_event as post type).
3) after that all other posts
Now, I am very much confused how to make it happend in WordPress while() loop. Can you guys help me?
My code:
while ( have_posts() ) {
the_post();
if ( is_sticky() && false === ( 'paid' == strtolower( get_post_meta( get_the_ID(), 'paid_placement')[0] ) ) ) {
the_title();
echo '<hr/>';
continue;
}
the_title();
echo '<hr/>';
}
Updated:
while ( have_posts() ) {
the_post();
if ( is_sticky() && false === ( 'paid' == strtolower( get_post_meta( get_the_ID(), 'paid_placement')[0] ) ) ) {
//the_title();
var_dump('paid' == strtolower( get_post_meta( get_the_ID(), 'paid_placement')[0] ) );
echo '<hr/>';
continue;
}
//the_title();
var_dump('paid' == strtolower( get_post_meta( get_the_ID(), 'paid_placement')[0] ) );
echo '<hr/>';
}
output:
bool(true)
bool(false)
bool(true)
bool(false)
bool(false)
bool(false)
bool(false)