hi unachicayeye,
Huh….you are afraid. Ok! no worries, just go to theme folder open header.php file go at the end and add this line just above </ul>
.
<li class="instagram-icon"><a target="_blank" href="your-instagram-link"><span class="fa fa-instagram" title="Instagram"></span></a></li>
replace your-instagram-link with the actual url. After this your code should look something like
<?php if(convac_lite_get_option($convac_lite_shortname.'_youtube_link')){ ?><li class="youtube-icon"><a target="_blank" href="<?php echo esc_url(convac_lite_get_option($convac_lite_shortname.'_youtube_link','timeliner')); ?>"><span class="fa fa-youtube-play" title="Youtube"></span></a></li><?php } ?>
<li class="instagram-icon"><a target="_blank" href="your-instagram-link"><span class="fa fa-instagram" title="Instagram"></span></a></li>
</ul>
</div>
<!-- Social Links Section -->
</div>
<!-- header image section -->
<div id="main" class="clearfix">
And add following css in child theme style.css or using custom css plugin
.social_icon li.instagram-icon a:hover {
background: none repeat scroll 0 0 #cc332d;
}