How do I edit in my tree? I accidently clicked on the wrong name for my great great grandm.other

Shirley2936

?

Áine.ní.Donnghaile

Good evening @Shirley2936
You may find this Help Article useful, explaining how to connect and correct relationships.
https://www.familysearch.org/en/help/helpcenter/article/connecting-and-correcting-relationships-in-family-tree

Best of luck and reply if you need more help.