Hey RDSNSOCAL,
Thanks for using Apple Support Communities! I understand your Keynote presentation is changing slides automatically. I'm happy to help get to the bottom of this.
To start, let's make sure none of the options for your slides to change automatically are enabled. Depending on your settings, presentations can play continuously in a loop, restart if it sits idle, or advance automatically. Check out how to adjust those settings here: Keynote for Mac: Self-playing or interactive presentations
If that link doesn't help, reach our to our Keynote experts here: Contact Apple Support
Choose Apps & Software > Mac apps > Keynote
Thanks again, and have a great day!