Return to previous editor before Gutenberg

What version of WP are you on?

Are you familiar with this official plugin ?

https://en-au.www.ads-software.com/plugins/classic-editor/

Oh god thank you for this plugin. I think that the new editor is a total failure, it was driving me totally crazy… it was impossible or very difficult to do many things that was very easy with the old editor. Please Mr. WordPress, test it a little bit more before to make it available to us..

It will be the future (Gutenberg), but it takes a bit of learning!
There is so much support behind it – I would suggest setting up a test site (I use the local server laragon), to learn how to use it and discover some of the fantastic add-ons that are being developed!