of your own making

of (one's) own making

Owing to one's own actions, especially one's mistakes or poor decisions. I know you're angry that you won't be able to compete in the tournament, but this whole mess is of your own making!
See also: making, of, own
Farlex Dictionary of Idioms.

of your own ˈmaking

(used about a problem or difficulty) caused by you rather than by somebody/something else: The problem is of your own making, so don’t try to blame anyone else.
See also: making, of, own
Farlex Partner Idioms Dictionary
See also:
  • at will
  • better (to be) safe than sorry
  • better safe than sorry
  • (one's) day in court
  • at (one's) doorstep
  • at doorstep
  • at expense
  • at somebody's expense
  • at someone's expense
  • at (one's) expense
References in classic literature
And yet every person in the house would have been scandalized if the plain question had been put: You know this is a tyranny of your own making, you know you don't really believe in it, you know you don't really like it--why do you submit?
Man And Wife
At Bournemouth crown court, Judge Sir Ian Kennedy said: "This is a tragedy entirely of your own making."
LIFE FOR WIFE KILLER
'This case is a tragedy for each of you and your families - though how much greater a tragedy it has been for your victim and his family - and it is a tragedy of your own making,' the judge told the trio.
Builder died after unprovoked attack