Beginner answer is first just start by not showing that you take it personally.
Senior and more evolved answer is you separate yourself from your work, "you are not your work". So someone critiquing your work doesn't mean their critiquing you.
More senior answer is that you are not attached to getting the best answer yourself, but more attached to getting to the best answer by any reasonable means (including someone else s*itting on your work).
Ultimately, you are trying to arrive at some truth, which you have produced through the lens of your own conditioning, someone is trying to provide what they think is the truth through the lens of their own conditioning. Behind it all we'd like to think there are good intentions which are all to aspire towards the truth but that when we express this idea and it gets "colored" in some sense by our own impressions of the world, it may not always come out the right way, and so you have to take a deep deep breath, to let it all just be, and press on.
Senior and more evolved answer is you separate yourself from your work, "you are not your work". So someone critiquing your work doesn't mean their critiquing you.
More senior answer is that you are not attached to getting the best answer yourself, but more attached to getting to the best answer by any reasonable means (including someone else s*itting on your work).
Ultimately, you are trying to arrive at some truth, which you have produced through the lens of your own conditioning, someone is trying to provide what they think is the truth through the lens of their own conditioning. Behind it all we'd like to think there are good intentions which are all to aspire towards the truth but that when we express this idea and it gets "colored" in some sense by our own impressions of the world, it may not always come out the right way, and so you have to take a deep deep breath, to let it all just be, and press on.