How do I script hold f to buy a tool?

For the Past I've been trying to figure out and it would be helpful to note that, because my attempts have been unsuccesful which is unfortunate

Can you be more specific? I think this will help?

local item = --your item path here
local player = game:GetService("Players").LocalPlayer
local mouse = player:GetMouse()

mouse.KeyDown:Connect(function(key)
	if key == "f" then
		wait(2) -- make it how long the holding will be
		local clone = item:Clone()
		clone.Parent = player:WaitForChild("Backpack")
		if player.Character.Humanoid.Health == 0 then
			wait(4.75)
			local clone = item:Clone()
			clone.Parent = player:WaitForChild("Backpack")
			--it's basically gives you the item if you died
		end
	end
end)

or you can just use proximity prompt, learn it on youtube!

local proximitypromt = --your proximity prompt path here

proximityprompt.Triggered:Connect(function()
	local item = --your item path here
	local player = game:GetService("Players").LocalPlayer
	local clone = item:Clone()
	clone.Parent = player:WaitForChild("Backpack")
	proximitypromot.ActionText = "Bought!"
end)

if none of the above works, then dm me on discord: Blue Duck#9891

(if you have discord)