I think almost 20 years. But it hasn't been every minute. I may have been since I realized I would die eventually, my parents would die, everyone would die. It's gotten worse on and off over the last decade. Getting sober helped but also made it worse. Becoming infatuated with someone who I can never be with has made the last 5 years unbearable. Sometimes I believe it's a karmically disastrous, sometimes I don't care enough to think about whether or not I believe in karma. It's felt like my whole life that I've considered suicide very realistic, almost necessary.