By now, you might have an extra computer or laptop lying around the house. Put it to use as your guest or grandkids computer so that you don’t have to worry about changes made to your computer behind your back. It will really lessen your stress, as will turning on the guest network feature in your Wi-Fi router, if you have that capability.
Use the Windows Task manager in Windows 10 to disable programs from automatically starting that might be slowing down the boot up process, especially Microsoft OneDrive if you are not using it. Right click on the Task Bar along the bottom of the screen, then select Task Manager. When the Task Manager opens up, you might have to click on More details, in the lower left of its window. Then click on the tab, across the top, labeled Startup. Here you can disable things that automatically load while Windows is starting up. For example, you could disable One Drive, that file sync tool from Microsoft, if you are not using it. Things you disable are not uninstalled, making it easy to re-enable them if you get over zealous. You will have to restart the computer for these changes to take effect.
Shortened URLs, like those from bit.ly, are increasingly common, especially in scam emails. But, you have no way of revealing where they go without clicking on them. Or, you could copy that shortened URL into the website https://unshorten.it/ and you will see a preview of the site, along with an assessment of its safety as provided by Web of Trust.
On the Mac, there is a hidden feature to summarize long blocks of text, Go into System Preferences, then Keyboard. Click on the Shortcuts tab, then click on Services in the left column window. Scroll down the right column, looking for Summarize under the section for Text. Check it and close out of System Preferences. Now, you should be able to highlight a block of text, click on the name of your application (up by the black Apple logo) and look under Services for Summarize. It may not be perfect but it is worth a try.
If you find you are running out of space for photos on your iPhone and you don’t really want to pay for iCloud storage, then consider the Google Photos app. It will upload your iPhone photos to your Google account, and Google offers free unlimited space for photos up to 16 megapixels each. Read more at https://www.google.com/photos/about/
When nothing else will turn off your computer, you can always press the power button for a good five seconds (or count to ten) until all lights go off. Then you can turn it back on, it may take a bit longer to boot up, it is checking files and such. If this become a habit, then there is likely something else wrong and you should have it checked out.