Which Mediums to Pursue?

I din't know what kind of art to pursue, or what medium to focus on. I thought about mixed media, but I don't know in what context.

I don't want yo just keep buying art stuff without fully using it. Right now I have:

- Alcohol markers

- Acrylic markers

- Acrylic paint

- Watercolors

- Paper-friendly markers

- Oil pastels

- Colored pencils

- Mechanical drawing pencils

- Traditional drawing pencils

- Special drawing pads and papers

- Assorted other supplies

I am having a hard time zoning in and gocusing on one medium, or even style of art. Do I sketch? Paint? Make a collage? Do I focus on how to draw the human body? Manga and anime? Digital? Do I just do stiff to express my current condition, feelings, and life? Do I work towards being able to sell stuff, or just for the fun of art? Do I draw and create stuff related to my OCs? Or do I do fan art? Or create from reality?

These questions keep me from doing anything sometimes. If I choose one path, I feel another will close, and here I will be sitting on a mountain of unused supplies, because I can't stick any landings.

It should be noted that I'm not new to art really, or very young. Approaching kiddle age, and wanting to be artistic, but I want it to be worth it. I don't want to make useless, meaningless things ....but I don't know what to focus on improving. There is nothing wrong with that, it just isn't the direction I want to go.

Any help, advice, or encouragement would be helpful. Thanks for reading.