I tried going to settings but there is no option. Could anyone help me on this?
How to change the username of this account here?
_IHA_FAB_ Just press unto your profile name or circular profile picture and you'll reach a page that shows you an enlarged version of everything along with all of your recent activities such as commenting and all that Webnovelly stuff.
Beside the heart option, theres 'Edit Profile' and you can move on with your editing work from there.
If everything goes beyond technical errors then this advice of mine might not be of use.