How to Reinvent Yourself

A new year is starting. I was fired from the company, I have no interests, hobbies, habits. How to recreate yourself? Next year I will be 30. I want to change. Can you give me advice/books/youtube channels on how to make changes in my life? I just want to be someone, not just any person. I will accept everything, how do you plan your day? What to focus on, etc.