Use momentary switch to switch between three devices
Your did not really explain what you want to do, but based on title (switching between three devices), perhaps simpler solution without complete DIY circuit might be to use ready-made microcontroller device such as Shelly or Sonoff. I know for fact that Shelly can be configured to control two devices with one momentary switch. This assumes that you control your motor speed with two separate On/Off switches and not via PWM or any other type of regulation.
As for light, it is really not clear what you want, however shelly again can trigger web request when something happens (e.g. switch is pressed), you could use it to change the light (via other shelly, or even simpler controller).