I didn't think I was worth it either, but my partner is, my relationship is, and I am part of that relationship... Besides he believes I am worth it, so was worth a shot.

So maybe I didn't do it 100% for myself, but it still is for me because I wanted to have healthier relationships with my loved ones, so I guess its a bit of both depending how you look at it.

Also, regarding the DBT, Distress Tolerance and Mindfulness is supposed to help with suicidality...

It's not for everyone, but with lots of practice it has definitely helped me