Legalize Suicide for those who no longer wish to live with mental illness in this country

I am a son of America. I am a son of Texas. My entire life I have lived with severe ADHD, Severe depression, and anxiety disorders. There is no place in this country for a person like me. i am suicidal, but i cant die, my family would be too hurt. i want a kinder way to die at a hospital so my parents will at least have some closure. disorders are looked at with a stigma in this country, but not all of us are evil, i am not Adam Lanza although we both have a very similar set of disorders or so Ive read. I do not wish to live in a country where all i see is corruption, but I can't leave. I don't see a bright future ahead of me, only darkness. Ive heard some countries allow assisted suicide, i ask that the United States make legislation towards this goal. have mercy please.