Stuck on leaderstats Problem?

I have tried putting a code in a tool whenever the humanoid is hit it goes to 0 health and also it gives you a certain amount of Cash, Xp, Kills. But whenever I kill someone it gives me a random amount of Cash Kills and Xp.

Here is the script:

local knife = script.Parent local handle = knife:WaitForChild("Handle")

local throwRE = knife:WaitForChild("ThrowKnife")

local throwAnim = script:WaitForChild("ThrowAnimation")

local cooldown = 3 local isCooldown = false

throwRE.OnServerEvent:Connect(function(plr, mouseHit)

end)