1 want to stop autocorrect deleting text as i insert text

[Jemma Payne-Allen]

As I am inseting new text into my document autocorrect is deleting existing
text instead of creating a space for me to do this. so I am ending up
retyping the whole thing again! How can I stop this and return to normal?

 

[garfield-n-odie]

Press the Insert key once to toggle between Insert and Overtype
modes.