I tried making a script that changes the players speed but it is not working and there is no error in Output
script.Parent.ClickDetector.MouseClick:connect(function(hit)
local humanoid = hit.Parent:findFirstChild("Humanoid")
if humanoid~=nil then
wait(0.01)
humanoid.WalkSpeed = 150
end
end)

2 comments
Can you show me a script like this but instead of changing walk speed it made you jump higher?
I can send you a little tutorial on gravity https://www.youtube.com/watch?v=rT72n5_eLlU