I am looking for the step in Audacity to fast forward a playing song thanks for any help.
There is a Playback Speed Control different from regular Play.
https://manual.audacityteam.org/man/play_at_speed_toolbar.html
Koz
If you zoom out so that you can see the entire track (Ctrl + F), then you can simply stop playback (spacebar), click on the waveform where you want to fast forward to, then restart playback (spacebar).