You can update your account’s username and profile photo by following these steps:
Make sure you are logged in to your CurseForge account, then click on Settings:
Upload a new profile photo or change your username:
Click Save changes.
If you signed in to your CurseForge account through Twitch, you can also change your username and avatar through the Twitch Settings panel, under the Profile Tab (Profile Settings → Edit – Pencil icon).
After making changes, please log out and log back in to your account to ensure they are applied correctly.