Hi there! I can understand how frustrating it must be to try so many times without success. Let's see if we can get that selfie taken for your Australian ETA app on your Google Pixel 7.

There can be a few reasons why you're having trouble, so I'll ask a few questions to narrow it down:

1. Are you receiving any error messages when you try to take the selfie?
2. Have you checked if your camera app is up-to-date?
3. Have you made sure that there are no obstructions or dirt on the camera lens?

If you haven't already, one common issue can be related to photo file sizes with high-resolution cameras. Some apps, including the ETA app, might struggle to process images that are too large. Here’s what you can try:

### Step-by-Step Solutions
1. Clear Your App Cache:
- Go to Settings > Apps > Australian ETA App > Storage > Clear Cache.

2. Lower Resolution Settings:
- Try using a third-party camera app to take the selfie and lower the resolution settings before capturing. Take the photo and then upload it to the ETA app. This may help if resolution is an issue.

3. Restart Your Device:
- Sometimes, simply restarting your device can resolve camera issues.

4. Reinstall the App:
- If the above steps don’t work, try uninstalling and then reinstalling the Australian ETA app.

5. Check for Updates:
- Ensure both your phone’s operating system and the Australian ETA app are up to date.

6. Lighting and Framing:
- Ensure you are in a well-lit area and that your face is well-framed in the camera. Sometimes, lighting can make it difficult for the app to process the image.

If you complete these steps and are still having issues, I can help you look into further options or guide you on contacting support if needed. Are you satisfied with the solution I provided?