I have uploaded my website, however i want to edit it, how can i do that?

Follow these steps after you log in...

If you used the website wizards:

Hosting and Domains
Manage Hosting
Your Website Management Tools
Website Wizards
Website Utilities
Manage Website
Edit Content
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If you use file manager:

Hosting and Domains
Manage Hosting
Your Website Management Tools
File Manager

I would say, go back to whatever you used to create your website to start with, make your changes, and then upload the updated files.