I'm sorry to hear that
I think perfectionism can be a good thing in that it can make you focus on inconsequential detail to the extent
that you aren't bothered about the 'big stuff'
For example, if I go to the supermarket and have to pick a lemon it can take ages as I have to pick the 'best' one
If it's a book it must be the least marked one - to buy a book with a fold on the cover would really bother me
Often after I've tried to find the 'most perfect' item and got home I discover a flaw and this really gets to me!
But while all this faffing is going on, I'm not worrying about the big issues like death, global warming, crime etc - in fact while global warming is obviously worrying I just cannot get that worked up about it and wonder if other people are really worried/caring about it either or are they pretending to be for effect/because everyone else is
btw I do try and be 'green' etc, I just don't 'care' on a day to day basis about global warming
Whatever, it's a big issue that is essentially out of my hands/not controllable by me so it ceases to worry me
So in this way I see AS/perfectionism as protective as it takes the mind off worrying about major stuff
The problem is when the perfectionism is turned onto the self, with constant rumination on negative stuff
I have recently read a book called 'Taming Your Gremlin', which I can't recommend highly enough as a way of learning how to dismiss the negative stuff from your mind