For a company that makes some great products, Apple sure makes it hard to use iCloud and your Apple IDs. Many times we find clients get confused with the differences (there is one!) and the stuff gets all jumbled up.
You’ll have all your stuff organized when you’re done. You won’t be sharing with family members unless you want to. You’ll also learn what went wrong and how to prevent future problems. You might be running out of space on iCloud or not able to access it