I am thinking of reinstalling the wordpress because i could not go further building new pages because of ‘visual’ which when i click to type, it does not respond but that of ‘text’ is ok. Now i want to go premium / upgrade having gotten some knowledge that will take me to the higher level provided i will not lose my domain name. Please, advise me. I don’t want to go and pay money to another host.
Yes of course, reinstall WordPress you can configure the domain name if you do it yourself download WP from WP and upload, extract and install.
If you use the autoinstaller it will most likely configure it to 000webhostapp domain and you’ll need to change the two URLs in the database for it to be your custom domain again.