Exit international while not necessarily a pro-suicide website it has all sorts of blanks, it will certainly offer you links as to how to go about having euthanasia completed in Switzerland, it's the only country where it's legal with euthanasia with mental health issues.
Canada was doing it last year, it was insanely easy as well which was part of the problem? And it became rather controversial so the Canadian government has put it on hold for the time being, there's an awesome documentary about it, people with major depressive disorders who were successful in some who run the list and are still waiting. Hope this helps
Links i meant. I post via Google talk to text so frequently there are these errors apologies if there's more