Hi there copi171,
From what we can tell, you upgraded your iCloud storage plan, but not all your photos and videos are uploading to iCloud afterwards. We're glad you're here, and we can help.
Let's start by making sure the upload isn't paused. What do you see for the upload status of your photos when you open the Photos app, select the Library tab, tap All Photos, then scroll to the very bottom? Have a look at the 'How do I check the status of my uploads or downloads to iCloud Photos?' section in this link to learn more:
Get help with iCloud Photos
If your uploads appear to be paused, you'll want to be sure Low Power Mode is turned off in Settings > Battery, and then connect to a reliable Wi-Fi network with good signal strength to allow the upload to complete.
"When you turn on iCloud Photos, the time it takes for your photos and videos to upload to iCloud depends on the size of your collection and your internet speed. If you have a large collection of photos and videos, your upload might take more time than usual." Have a look at the 'Pause library uploads to iCloud' section of this link for more information:
Set up and use iCloud Photos
We hope this information is helpful. Don’t hesitate to let us know if you have any more questions.
Cheers.