Also, I have set SD card as default for storing any images or videos. So any screenshot or photo captured from my mobile camera automatically gets stored in my SD card. And, whichever image is important and I want to keep it indefinitely, I upload it to Google Drive.
Knowledge is power.
Moreover, we should always turn off the automatic updates and automatic downloads and redirect non essential downloads based on priority to the SD card.
I find that the harder I work, the more luck I seem to have.