Tried many things after the diagnosis: medication (Concerta/Vyvanse), meditation, counseling, self-help. Some things worked, some things failed. It is hard to find ADD specialists in Switzerland; I am lucky to have even this amount of help.

Have you continued the things that have worked? I have never been to Switzerland and know little about its medical care, but I can't imagine there is not someone there that can help you with this given how advanced the society is.