of your own making, be the making of somebody

5. PHRASE : v-link PHR

If you say that something such as a problem you have is of your own making, you mean you have caused or created it yourself.

• Some of the university's financial troubles are of its own making.
  

... Cobuild

be of your own making:

if an unpleasant situation is of your own making, you have caused it: 

• The problems she has with that child are all of her own making.
  

be the making of somebody:

if you say that an event or experience was the making of someone, you mean that it made them develop good qualities (never in present tenses) 

• A spell in the army will be the making of him! 
• University was the making of her, because she was able to escape the influence of her family at last.

... Cambridge Idioms, http://idioms.thefreedictionary.com/making