how would i use debounce in this situation?

pss, your script looks messy cause your not using indents right ;p

Ok so to make a debounce we are going to create a bool variable outside this mess, then with they click check if it is true, if so make it false, at the end of the click event we wait a few seconds then make it true again.

local mouse = game.Players.LocalPlayer:GetMouse()
local clicks = 0
local d = true 

wait(5)

mouse.Button1Down:connect(function()
	if d==true then d=false --debounce
		clicks = clicks + 1
		if clicks == 3 then 
			for i = 1,1 do
				local Leaderstats = game.Players.LocalPlayer.leaderstats:findFirstChild("Strength")
				if Leaderstats ~= nil then
					for i = 1,1 do
						Leaderstats.Value = Leaderstats.Value + 1
						clicks = 0
					end
				end
			end
		end
	end
	wait(5) --debounce wait
	d=true --change back
end)