To be a better version of yourself, you need an agenda and an honest conversation with yourself. Start by compiling your main goals, and participate in an activity that adheres to those values. This process is called actualization.
Below is an itinerary of activities that are fun while spending time with yourself. If you want to you can stick with your interests, or try out something new!
Carl Jung's Active Imagination
Make a Biosphere
Start an Ecology Notebook
Create a Shadow box of things you love
Find your excercise routine through fun
Look in the mirror
Trace the production of something you own
Learn about a family member's life history
Go hammocking
Make air dry clay art / functional appliances / statues / decorations