might be a quick problem

[earnest pendant]

local UserInputService = game:GetService("UserInputService")
local player = game:GetService("Players")
game.Players.PlayerAdded:Connect(function(player)
    player.CharacterAdded:Connect(function(character)
        local humanoid = character:FindFirstChild("Humanoid")
        if humanoid then
            print("child found its", humanoid.Parent.Name)
            UserInputService.InputBegan:Connect(function(input, gameProcessedEvent)
                if input.KeyCode == Enum.KeyCode.E then
                    print("e pressed")
                    humanoid.WalkSpeed = 50
                    wait(1.7)
                    humanoid.WalkSpeed = 20
                end
            end)
        end
    end)
end)```
im a beginner to coding and im trynna make some ability where u js go super fast for a lil bit, only thing is there are no errors but it js wont make me go fast OR print that the e key was pressed

[sick girder]

UserInput is a client side service

put it in a local script under starter player scripts

[earnest pendant]

still wont work

but it does say that the humanoid was found

[earnest pendant]

local UserInputService = game:GetService("UserInputService")
local players = game:GetService("Players")
local flashStep = false
local cooldown = false

local player = players.LocalPlayer -- defines the player
local character = player.Character or player.CharacterAdded:Wait() --looks for the character in the player
local humanoid = character:FindFirstChild("Humanoid") --looks for the humanoid in the character


UserInputService.InputBegan:Connect(function(input, gameProcessedEvent)
    if input.KeyCode == Enum.KeyCode.E and cooldown == false then
        print("flash step on")
        flashStep = true
        cooldown = true
        humanoid.WalkSpeed = 50
        wait(1.6)
        print("flash step off")
        humanoid.WalkSpeed = 20
        flashStep = false
        print("cooldown on")
        cooldown = true
        wait(2)
        print("cooldown off")
        cooldown = false
    end
end)

figured it out