How to make it work?

Wut Be Da Problem?

For the most part you have it correct, but you need to fix a couple things. First, you tried to set "leaderstats" as a model. "leaderstats" needs to be an IntValue, and your "points" should be a NumberValue. The only other thing in your first script is that you only update the value once. You need it to stay updated in order for the player to constantly be able to see there amount of points.

In your second script, pretty much everything is correct except the way you Debounced. To properly debounce, you need to set up and if statement with a variable that turns on/off.

Boi, Let's Fix Dis

Now, here's the first script:

To fix this, put the script in the Workspace, and change it to this:

game.Players.PlayerAdded:connect(function(player)
    local leaderstats = Instance.new("IntValue",player)
    leaderstats.Name = "leaderstats"

    local points = Instance.new("NumberValue",leaderstats) --Changed to NumberValue
    points.Name = "Points"
    points.Value = 0

    local P = game.StarterGui.Points.Frame.Point
    P.Text = "Points: "..points.Value
end)

And da second one:

To fix this script, simply change it to this:

local waittime = 5 -- Time Between each hit --'locals' are more efficient, and work faster with the script
local amnt = 4 --how much you get for it
local disabled=false
function onTouched(part)
    if disabled==false then --Proper debouncing method
        local h = part.Parent:findFirstChild("Humanoid")
        if (h~=nil) then
            local thisplr = game.Players:findFirstChild(h.Parent.Name)
            if (thisplr~=nil) then
                local stats = thisplr:findFirstChild("leaderstats")
                if (stats~=nil) then
                    local score = stats:findFirstChild("Points")
                    if (score~=nil) then
                        score.Value = score.Value + amnt
                        disabled=true
                    end
                end
            end
            script.Parent.Transparency = 1
            wait(waittime)
            script.Parent.Transparency = 0
            disabled=true
        end
    end
end

script.Parent.Touched:connect(onTouched)

It's almost fixed, but not completely. Add a new LocalScript into the StarterGui>Points>Frame>Point, and put this in the script:

local Player=game.Players.LocalPlayer
local stats=Plr:WaitForChild("leaderstats")
local points=stats:WaitForChild("Points")

function PointChange()
    script.Parent.Text="Points: "..points.Value
end

points.Changed:connect(PointsChange)

So, If you did this correctly, I believe it should now work.

Anyways, if you have any further problems/questions, please leave a comment below, and I'll see what I can do. Hope I helped :P

-Dyler3