"But not anymore now. I feel like my time for everything is running out." -> what is this everything you want to have time for?
Do you wish to be in a relationship? since you mentioned it at the beginning.
When I don't feel excited about the world, similar to what you describe, you meditate or spend time in nature. Reading about geology or trees has opened my eyes about how little we grasp about the nature of the universe and how focused on our own short lives we are while we are actually not much important. It's a shift in perspective. Usually, it helps me remember the small things that I still can influence rather than those beyond my control.