i wrote this and i don't know where to go. It doesn't change the variables that it should change so i'm lost. At first i tried calling vel in place of the 100's but that didn't work either

print("Hello world!")
local lf  = script.Parent.lf
local lr  = script.Parent.lr
local lr2 = script.Parent.lr2
local rf  = script.Parent.rf
local rr  = script.Parent.rr
local rr2 = script.Parent.rr2
local vel = script.Parent.Folder.angvel.Value 
local controller = script.Parent.VehicleSeat
while true do 
	wait (.001)
	while script.Parent.Folder.ON == true do
		--checking for on status
	
	if controller.throttle == 1 then
		--setting wheels to spinning speeds
		rr.HingeConstraint.AngularVelocity  = 100
		rr2.HingeConstraint.AngularVelocity = 100
		lr.HingeConstraint.AngularVelocity  = 100
		lr2.HingeConstraint.AngularVelocity = 100
	else
	if controller.Throttle == 0 then
		rr.HingeConstraint.AngularVelocity  = 0
		rr2.HingeConstraint.AngularVelocity = 0
		lr.HingeConstraint.AngularVelocity  = 0
		lr2.HingeConstraint.AngularVelocity = 0
			else
		
	end