Auto-rank script with XP, so it will change their cash when they reach a certain amount of XP, Help?

Hello, I'm making an auto-stat change script which changes someone rank when they reach a certain amount of XP, I've added a few 'end' lines because when I start a line with "if" it will make me put a 'end' at the end, I don't know if this is the problem, here is the script, the script is in a a part which is stretched across the world, so they are always touching it.

The script is in a normal script, but please help if you can!

local ting = 0

function onTouched(hit)
	
	if ting == 0 then 
	ting = 1
	check = hit.Parent:FindFirstChild("Humanoid")

	if check ~= nil then 

		local user = game.Players:GetPlayerFromCharacter(hit.Parent)
		local stats = user:findFirstChild("leaderstats")

		if stats ~= nil then 
			local cash = stats:findFirstChild("Rank")
			local xp = stats:findFirstChild("XP")
			if xp.Value == 250 then
			cash.Value  = "Private"
			elseif xp.Value == 7500 then
				cash.Value = "Private First Class"
			elseif xp.Value == 20000 then
				cash.Value = "Corporal"
			elseif xp.Value == 21550 then
				cash.Value = "Warrant Officer 2"
				elseif xp.Value == 23500 then
				cash.Value = "Warrant Officer 1"
				elseif xp.Value == 25000 then
				cash.Value = "Sergeant"
				elseif xp.Value == 30000 then
				cash.Value = "Master Sergeant"
				elseif xp.Value == 35000 then
				cash.Value = "Capitan"
				elseif xp.Value == 36500 then
				cash.Value = "Second Lieutenant"
			    elseif xp.Value == 37500 then
				cash.Value = "First Lieutenant"
				elseif xp.Value == 40000 then
				cash.Value = "Cononel"
				elseif xp.Value == 45000 then
				cash.Value = "Commander"
				elseif xp.Value == 50000 then
				cash.Value = "Admarial"
			elseif xp.Value = 65000 then
				cash.Value = "Commanding Officer"
			end
				end
				end
				end
			end
				end
				end
				end
				end
				end
			end
			end
			end
			end
		end
	end
	end)
			
			

	ting = 0
	end 
	end 
end

script.Parent.Touched:connect(onTouched)

• THANKS