This being an informal look at synopsis don't worry about structure at this point just get the most dramatic points down on paper. This is an exercise in preparing yourself for that day when you need a synopsis for an editor or agent to look at. Add a dash of dialogue to bring out the living work of your novel and your voice. The words still rang in her head as she fell asleep at night alone. Just a little, a line or two here and there, can reveal the dramatic points in a sharp, brief way that can perform as a hook and pull the editor or agent away from the synopsis and into the sample chapters you've sent.
Novels have a longer leash that allows for change.
The dramatic events shown in the scenes you have or will create, are the moments where the micro changes take place until the end is reached and the characters walk away different because of the story or perhaps in spite of it. Profound change is rare, so don't shatter the reality you've created by having a complete stranger in your character's place at the end. Change the person that started the story and went through the events of it, and make sure the change is reasonable. Change is small and takes time. Don't try to explain it, if it needs to be explained it's not clear.