Can anxiety depression really be cured, been 13 yrs. like this daily multiple things an nothin has helped is this why people kill theselfs ?

It can be treated: So far - nothing has helped. It only means you've yet to find the right treatment for you and followed through to the best of your ability. It's not a cure, but relief and skills to live more successfully. Adjusting your patterns of thinking, acting and feeling with support and chemical aid is the goal. Seek help and work at it patiently. CBT therapists a a key part. Best!