I just made text all effects lightning and stuff but than i realised i made a mistake while typing but i have already converted text to mesh so how can i convert mesh back to editable text and fix a mistake? i hope i was clear enough 
You cannot convert a mesh back to a text object, only to a curve object
I recomend u always make a copy of a text before making it a mesh
I never know that we can convert a mesh back to a text object, I just know we can use a spcific image converter, such as tiff converter to convert tiff image into text file. Am I right?