Ohhh justification

I'm having serious issues coming up with things to justify what my characters do, which makes me uncomfortable with setting up the storyline. I've been thinking a lot about whats going to happen to each of them. I started this play in the summer, but I don't like where it started heading and now I feel like I need to keep the characters but throw the original plot out. So that's what I'm going to do. I worked on poems today. In addition to finally deciding to through out my plot.