Help with Appointway Theme please

I have completely messed up. At first glance, this Appointway theme seems very simple. None of the services I’ve added are showing up.
http://www.qualitytimeerrands.com/

1. I don’t know where the code at the very top of the page came from.
It looks like the googleanalytics script that I placed in the body. why is it showing up here?
I read the instructions to make sure google analytics was working, which was confirmed after putting this script in.

2. I installed “hellobar” plugin and don’t even see it.
3. In the homepage feature area, I listed 3 services, with images and descriptions.
4. WordPress Font Resizer by InoPlugs – it’s at the bottom left corner and I want it at the top right hand above the phone number.
5. Menu items – for the life of me I can’t figure out how to customize the menu. I need to add About us, Services and Contact Us to the menu bar.
6. I downloaded the PageBuilder by SiteOrigin- I thought I could use this to customize any theme.

7.How do I get rid of all this? >>>Hello world!
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8. I need to replace categories on the right with a FormGet Contact Form, but it doesn’t show up.

Please help. It’s a mess. Thank you.
http://www.qualitytimeerrands.com/

Please let me know if I need to shorten this post.