I've been repeatedly told that I'm lazy and I think it's one of the most careless things someone can say. It's not laziness, but from my experience, there's no will/motivation/reason/vision of a better future life, and without those there's not a drop of strength or energy to act. Like you said, why bother trying if there's nothing to work towards and to live for? It wasn't until I started envisioning the possibilities for what my future life could look like if I were to get this job or become more independent from my family that I started finding a spark of "trying power". Sometimes my plan didn't work out and my vision dissolved and I was back in a slump until I worked out another plan that came with a new vision/goal.
Since you're in the recovery section, I'll send encouragement to hang in there and to be kind to yourself (don't blame yourself for even feeling lazy if you do feel that way). If you continue living, you might be right and think you wished you ctb before, but you also might be glad you waited a little longer, who knows? I definitely don't believe in the whole pro-life slogan, "it always gets better!"
but I did learn that life is unpredictable and that it can bring unexpected changes, sometimes for the better (if that's any hope worth clinging onto).
Ah, the ultimate wish of so many of us