How Do i make Dynamic Lighting Around My Character?

You'll be using -PlayerAdded -CharacterAdded -Instance.new -Variables

game.Players.PlayerAdded:connect(function(plr)
    plr.CharacterAdded:connect(function(char)
        local a = Instance.new("PointLight", char.Head)
        a.Range = x --Replace x with how far you want the glow to be
        a.Brightness = x --Replace x with how bright you want it to be
        a.Color = Color3.new(x, x, x) --Set the color you want it to be (RGB value divided by 255)
        a.Shadows = true --Do you want the light to be seen through bricks?
    end)
end)

Insert a service called "PointLight" into the characters torso.