game maker – How do I create a powerup that effects speed for a limited amount of time in gamemaker studio 2

I am looking to create a powerup that when your “playership” object collides with it will effect the “playership”s speed for maybe a few seconds say 30-60 seconds. I cannot seem to figure this out on my own nor do I know what to look up so I am asking on here for some help.

I have this for my playership “y += sign(mouse_y – y)*global.Speedy;”