You can change your CurseForge username and profile photo by following these steps:

1. Make sure you are logged in to your CurseForge account:

2. Click on Settings:

3. Upload a new profile photo or change the CurseForge username:

Note: Your profile photo will need to be a square JPG or PNG file, 150px per side, max of 100kB.

4. Click on Save changes. You may need to log out and log back in to your account to see the 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.

If you're logged in via Google or Discord, it is not possible to change your Username or Profile Picture yet, but you can edit your display name.