Fixes to Wordpress SIte

I have a Wordpress site with many things that I'd like changed up within it. However, I need a professional that's going to be careful, as we get high volumes of traffic throughout all hours of the day, and any slow downs would affect us greatly. Here are all the changes we need: 1) We need to update our YOAST SEO plugin, however, it keeps conflicting with the plugin that we use for our custom gallery post type.. Whenever YOAST is updated, we can no longer add new images to our gallery posts. We need to update YOAST SEO without it conflicting with our gallery plugin. Both plugins are very important to us. 2) Our custom gallery post types do not show up on our front page slider, even though we tag them with the appropriate word. 3) Our custom gallery post types do not show up in our category pages, even though they are categorized. 4) I'd like for the custom gallery post types to not say how many comments are on the post like it does, next to the social media sharing buttons. 5) I'd like our RSS feed to show featured images without the use of a plugin. 6) Our Wordpress dashboard doesn't update us with the latest Disqus comments anymore. 7) We would like to hide the featured image within our custom gallery post types without the use of a plugin like we're doing now. Basically, we're looking for someone that can be reliable to be our Wordpress developer whenever we need one to change things up for us.