DMT can be very scary, but it's possible that if you are now suicidal that when you take it, afterwards your whole life view is changed and you will live a happy life and not being suicidal anymore.
That's why therapists do studies atm with hallucinogens, because they seem to work in a lot of cases.
It can be great, it can be scary, but yes it can change you for the good. (or maybe the bad, but if you want to ctb anyway...)
My physical body can't be repaired by it unfortunately, else i gave it a go ;)