The "hostname" parameter in VPS control panels only changes what the server calls itself (i.e. reverse DNS), but it doesn't change how the rest of the world sees the server nor the domain.
(In other words, you're changing "server → domain" but you need "domain → server".)
According to WHOIS, the domain teckandothernotesofly2018.com
currently doesn't exist; it's not owned by anybody. For it to exist, you first need to register and purchase it from one of the many dozen domain registrar companies.
Most registrars will automatically provide free DNS hosting, and a web-based DNS control panel. Use that to point the domain to the server's IP address.
You need to register the domainname TeckAndOtherNotesOfLy2018.com and get the A record pointing to "myip" – davidgo – 2018-04-30T08:50:41.417
6I’m sorry if this sounds rude, but please stop right there. Before running your own server and hosting a widely-used (and thus frequently-attacked) application like Wordpress on it, please learn about server administration and whatnot in a protected environment first. If you can’t or won’t do that, go for regular web hosting. – Daniel B – 2018-04-30T09:16:03.937