How to make my walljump script work without making the player fly forever?

I'm trying to do a walljump script the problem is that it doesn't work propperly,and every change that i do have 2 outcomes.

1-Just don't work

2-The player starts flying forever to the right of the character.

Here's the walljump script

local acceleration = require(workspace.acelleration)
local UIS = game:GetService("UserInputService")
local localPlayer = game.Players.LocalPlayer
local character = game.Players.LocalPlayer.Character
local humanoid = script.Parent:WaitForChild("Humanoid") 
local root = character:WaitForChild("HumanoidRootPart")
humanoid.Touched:connect(function(tp, hl)
    if hl.Name == "LeftUpperArm" and humanoid:GetState() == Enum.HumanoidStateType.Freefall then
        game.StarterPlayer.StarterCharacterScripts.doublejump.Disabled = true
        print("leftsurface")
        repeat
       if UIS.InputBegan == Enum.KeyCode.Space then
    humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
            root.Velocity = (root.CFrame.RightVector+root.CFrame.LookVector*0.2)*(40+acceleration*2)
            break
end
wait ()
until
 not hl.Name == "LeftUpperArm" or
humanoid:GetState() == Enum.HumanoidStateType.Landed
end
            if hl.Name == "RightUpperArm" and humanoid:GetState() == Enum.HumanoidStateType.Freefall then
                game.StarterPlayer.StarterCharacterScripts.doublejump.Disabled = true
        print("Rightsurface")
        repeat
        if UIS.InputBegan == Enum.KeyCode.Space then
    humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
            root.Velocity = (root.CFrame.RightVector*-1+root.CFrame.LookVector*0.2)*(40+acceleration*2)
            break
end
wait ()
until
not hl.Name == "RightUpperArm" or
humanoid:GetState() == Enum.HumanoidStateType.Landed or 
Break
end
    local r = Ray.new(root.Position, root.CFrame.lookVector * 5)
local hit, pos = workspace:FindPartOnRay(r, character)
            if (hit) and humanoid:GetState() == Enum.HumanoidStateType.Freefall then
        print("middlesurface")
        root.CFrame = CFrame.Angles(0,math.rad(90),0)+ root.CFrame.p
        else
            end
                game.StarterPlayer.StarterCharacterScripts.doublejump.Disabled = false
                end)