Notes is too easy to delete irretrievably!

I was typing in a running note on my iPhone that I'd been updating for several months. I unintentionally highlighted the whole 5 pages and couldn't figure out how to unhighlight it, tried hitting backspace which deleted the entire text of the note and for some reason substituted it with a blank table and now my notes are gone forever??? There's nothing the deleted notes folder as it wasn't a deleted note rather deleted text of a note. iCloud does not save a previous version of notes. Why not??? That would solve this problem for so many.