Reply To: Widgets on every page

@jessup573: Hello there,
Go to => Appearance => Customize => Additional CSS and add the following CSS Code.

/* To have the social and gallery widget only the main homepage */
body:not(.home) #footer-instagram #catch-instagram-feed-gallery-widget-4 {
    display: none;
}

/* To remove Archive text from Blog page */
.blog.absolute-header .site-title a, .blog.absolute-header .site-description {
    color: #000;
}
.blog.navigation-classic.absolute-header .site-header-menu .menu-wrapper .nav-menu > li > a, blog.absolute-header .site-header .site-header-main .site-header-menu .menu-inside-wrapper .main-navigation .nav-menu > li > a:hover, .blog.absolute-header .site-header-main .menu-social-container li a, .blog.absolute-header #primary-search-wrapper button {
	color: #000 !important;
}
.blog .below-site-header .custom-header {
	display: none;
}

To delete blog posts you didn’t write
Go to => Dashboard => Posts => Select and Move to trash.

I am afraid the Tik tok icon is not available in Font Awesome that the theme used for icons.

Can you let me know what kind of graphic image you are trying to add to the main page?

Let me know if this helps you out!
Kind Regards,
Skandha