be the making of somebody/something

be the making of (one)

To be a positively transformative event in one's life. He used to be irresponsible with money, but buying a home was the making of him—he's never been late with a single payment! In many ways, surviving that internship was the making of me.
See also: making, of
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

be the making of

Be the means or cause of progress or success, as in Marriage will be the making of him. This idiom, using making in the sense of "advancement," was first recorded about 1470.
See also: making, of
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

be the ˈmaking of somebody/something

be the reason that somebody/something succeeds or develops well: It was only a small part in a TV show, but it was the making of her.Those two years of hard work were the making of him.
Farlex Partner Idioms Dictionary © Farlex 2017
See also: