Hi 100offdeal,
Yes showing sticky post will add more post when the sticky post is beyond latest post. You can also control post per page to show how many post per page you want to show. Go to ‘Dashboard > Settings > Reading’ and set the number as you desire on ‘Blog pages show at most’ field and if you want to show the exact post per page including the sticky posts then you really need to hire a developer to customize the code.
To make the Tag line bold, Please go to ‘Appearance > Customize > Additional CSS’ and paste the below Custom CSS code
.site-description {
font-weight: 700;
}
Thanks
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