I love it when other people have done my work for me.
2019 Troubleshooting Guide to Common 3D Printing Problems
Alternatively if you want a paper copy 3d Print General has written an awesome book
If this didn’t help you with your issue check out the Ender 3 groups on Reddit and Facebook as well as r/FixMyPrint. These communities are wonderful about helping their fellow users fix their shit. Find them. Bookmark them. Go to them for the basic questions and troubleshooting of general printer issues.
Go to Keybase (Det_disp general chat) with the technical gun specific questions.
Now that you know how to print lets upgrade and make your printer a little more stable and reliable. Getting Started 4 : What Upgrades?
This is an AD