Issues with hit detection and disconnecting function?

I'm creating a combat system, and so far what I have is a player presses q to play an animation, which in turn fires an event. The event is handled in a server script in ServerScriptService, and handles the hit detection and damaging (to prevent exploiters). However, the hit detection for it seems to be very buggy when I try to disconnect the function.

-- All variables are defined prior to this code
local Touched
Touched = part.Touched:Connect(function(hit)
	local humanoid = hit.Parent:FindFirstChild("Humanoid")
	local upperTorso = hit.Parent:FindFirstChild("UpperTorso")
	if humanoid and not humanoid:IsDescendantOf(plr.Character) then
		humanoid:TakeDamage(damage)
		Touched:Disconnect() -- Disconnect the function once it's hit to prevent double hitting
		end
	end)
wait(.35) -- Wait for the animation to end, then disconnect it again (incase the character never hits anyone)
Touched:Disconnect()

The hit detection works fine without the second disconnect, except for if I press Q tons of times, it will then do tons of damage to whoever is hit next, whether or not the character is playing the animation.

Local Script

local UIS = game:GetService("UserInputService")
local player = game:GetService("Players").LocalPlayer
local character
local humanoid
local LeftPunchAnimation
local RightPunchAnimation

local PunchEvent = game:GetService("ReplicatedStorage").Events.Punch

local PowerAmount = script.Parent.SlideValue

player.CharacterAdded:Connect(function(c)
	character = c
	humanoid = c:WaitForChild("Humanoid")
	LeftPunchAnimation = humanoid:LoadAnimation(script.LeftPunch)
	RightPunchAnimation = humanoid:LoadAnimation(script.RightPunch)
end)

local punchDebounceTime = .45
local punchDefaultDamage = 5
local punchDB = false
local lastPunch = 0

UIS.InputBegan:Connect(function(input,gp)
	if gp then return end
	
	if input.KeyCode == Enum.KeyCode.Q and punchDB == false then
		punchDB = true
		if lastPunch == 0 then
			lastPunch = 1
			RightPunchAnimation:Play()
			local connect
			connect = RightPunchAnimation.KeyframeReached:Connect(function(name)
				if name == "Action" then
					PunchEvent:FireServer("Right",PowerAmount.Value)
					connect:Disconnect()
				end
			end)
		elseif lastPunch == 1 then
			lastPunch = 0
			LeftPunchAnimation:Play()
			local connect
			connect = LeftPunchAnimation.KeyframeReached:Connect(function(name)
				if name == "Action" then
					PunchEvent:FireServer("Left",PowerAmount.Value)
					connect:Disconnect()
				end
			end)
			
		end
		wait(punchDebounceTime)
		punchDB = false
	end
end)

Any help appreciated!

You're making it more complicated than it needs to me. There's no need to disconnect the function and you could just set a debounce to prevent damage from repeating.

Server Script

-- All variables are defined prior to this code

local debounce = false -- debounce

part.Touched:Connect(function(hit)
    local humanoid = hit.Parent:FindFirstChild("Humanoid")
    if humanoid and debounce == false then -- if hit has a humanoid then...
	debounce = true
        humanoid:TakeDamage(damage)
	wait(0.35) -- waits 0.35 seconds for the animation to finish playing
	debounce = false 
        end
end)

Local Script

local UIS = game:GetService("UserInputService")
local player = game:GetService("Players").LocalPlayer
local character
local humanoid
local LeftPunchAnimation
local RightPunchAnimation

local PunchEvent = game:GetService("ReplicatedStorage").Events.Punch

local PowerAmount = script.Parent.SlideValue

player.CharacterAdded:Connect(function(c)
    character = c
    humanoid = c:WaitForChild("Humanoid")
    LeftPunchAnimation = humanoid:LoadAnimation(script.LeftPunch)
    RightPunchAnimation = humanoid:LoadAnimation(script.RightPunch)
end)

local punchDebounceTime = .45
local punchDefaultDamage = 5
local punchDB = false
local lastPunch = 0
local debounce = false -- debounce for first KeyframeReached
local debounce2 = false -- debounce for second KeyframeReached

UIS.InputBegan:Connect(function(input,gp)
    if gp then return end

    if input.KeyCode == Enum.KeyCode.Q and punchDB == false then
        punchDB = true
        if lastPunch == 0 then
            lastPunch = 1
            RightPunchAnimation:Play()
	        RightPunchAnimation.KeyframeReached:Connect(function(name)
                if name == "Action" and not debounce then
		    debounce = true
                    PunchEvent:FireServer("Right",PowerAmount.Value)
			wait(0.45)
			debounce = false
                end
            end)
        elseif lastPunch == 1 then
            lastPunch = 0
            LeftPunchAnimation:Play()
            LeftPunchAnimation.KeyframeReached:Connect(function(name)
                if name == "Action" and not debounce2 then
		    debounce2 = true
                    PunchEvent:FireServer("Left",PowerAmount.Value)
                    wait(0.45)
			debounce2 = false
                end
            end)

        end
        wait(punchDebounceTime)
        punchDB = false
    end
end)