I think it is a little childish from my person

I do that too
But it's weird cause like, i "jump over street light shadows" while we're going down the expressway and it's really fun but also very childish but idc

ahahaha i thought i was the only one that did this... and i had a mental disorder of some kind

For me it's more of "I bet I can reach that tree (or any other item) before that car" so it's just me racing in my own imagination

you can still challenge yourself, but with teenager-esque (or adult) things.

I did this for many excruciating years until last New Year's Eve I said if I don't stop all this shit by midnight (insert terrible threat) would happen. I used it against itself and I've never done it again and I've felt like the genie from Aladdin when he gets his handcuffs taken off ever since