If you’re a pantser, I encourage you to outline, even if you only outline a few scenes ahead. Fiction is all about emotion. Think about the emotional journey your characters — and readers — will take.
They start in one emotional space, and end in another. You need to show that journey, in scenes. Dig underneath the surface emotions. If your character is sad, what lies underneath that sadness? What images appear in your character’s mind?
You can do a lot of digging in your next draft(s). However, if you think about what you’re doing in your first draft, you’re laying the foundations of a strong book.