When you remember you were excited about something in the past and find out you're not excited about it anymore or even find it cringy, don't try to get that feeling back. It means you grew out of it. To lose the passion about a thing actually means to lose the addiction and get more independent. It means you're on the right path of change. You will never lose passion itself; it will just get projected on things that will be able to inspire you in the moment. You are more sensitive now and able to recognize and appreciate way higher complexity, and the things in your past need to make place for the new. They had their time. Move on to what matters to you now. Until you lose that passion again. That's the circle of progress.