You can change 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 on 'Save changes'.
If you have 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).
Please make sure to log out and log back in to your account to save these changes.