Ok bro here you go:on your Zymic Control Panel, in the custom domain names section (the page you have opened above, add the name of the domain: ConnorSurdi.com, select extra domain and click ADD.
Now go to your TLD (Top Level Domain) Admin Panel on www.sslcatacombnetworking.com. There should be an option where you can set up nameservers. Just add our nameservers (ns1.vndv.com and ns2.vndv.com in my case).
Remember, you need to wait for at least 48 hours for server name propagation, before you can actually access your website by typing in ConnorSurdi.com in the browser....