View hidden folders on MacOS Mojave? cmd+shift+. does not work

Since I'm not really great with using the terminal, I would like to see hidden folders on my Mac through the regular user interface. However, I cannot show my hidden folders. I tried things I found on the internet but they did not work for me. I tried 1. cmd+shift+dot - nothing happens 2. settings > Keyboard > turning on and off "Use F1, F2, etc. keys as standard function keys" 3. settings > Keyboard > Shortcuts > Restore Defaults 4. terminal.app > defaults write com.apple.finder AppleShowAllFiles ["yes"/"YES"/" "] source 5. at the folder I want to view the hidden contents of, I pressed Alt while clicking Go. after the "Library" folder showed up in "Go," I clicked it and saw many folders in Library, but still didn't see any folders with . in front. source My main goal is to copy and paste into a .gitignore file that is stored in a specific folder on my desktop. I am having troubles doing it through the terminal so I thought this would be easier but it is apparently not. :) **Question:** How can I fix this issue and allow myself to see hidden folders on my Mac? I don't have a strong background in this stuff and am not trained in computer science/tech stuff. I have macOS Mojave.