How Do I Get The Bow Arrow Entity Itself In A Separate Function

i'm just doing a very goofy mod (and you can see some bits of it on my youtube channel) and i want to do a bow enchantment that will do some fuctions at the arrow position (no spoilers) but i don't know how to get the arrow shot from the enchanted bow in separate function, i don't want to do the function on hit but i want it to be while the arrow from the enchanted bow is in the air and also i don't want it to work when the arrow is stuck on a block.

also for those who hate visual coders, i am trying very hard to learn the syntax of at least one programing language but no matter how much i practice and how many online courses i completed i still cant even write if but when i try unreal engine blueprints or godot orchestrator i can do everything i want so please don't hate me for making mods in mcreator because i can't do java please

also when i get the function to work i will do a sneak peek for the enchantment on my channel