What is the most logical next event?

How to write a novel using your journal
Look for moments that felt powerful to you.
Read through your journal and search for any moments that jump out at you. Highlight or underline moments may have been powerful and intense for you at the time.
You could then turn these powerful moments into the beginnings of your novel. For example, maybe you have a vivid journal entry about the first time you experienced sexual desire as a young person.