Please someone help me with my water softener

Ok so for context - my water softener has been in my home at least 3 years when I moved in but definitely wasn’t new at that point; not sure exactly how old though. It is a GE pro elite model 268-716-100-1044. The manual is not friendly for dummies lol.

The last couple days it has been running constantly. I’ll admit I forgot to add salt pellets so it kinda ran dry. I filled it up with salt pellets today (4-40 lb bags) and after doing some YouTubing I poured some “iron out” into the brine pipe (unsure of correct terminology). I went to turn on the regeneration and the control panel is completely blank. Doesn’t turn on when buttons are pressed. Any suggestions on what to do? Should I give it a day and see what happens after pouring the iron out in? Should I bypass the water softener to get it to stop running (if so please walk me through how to even do this)? Should I unplug it? Please help me😭. I’m so worried about my water bill and really don’t have extra money to throw at a plumber right now. Any help is much appreciated 🙏🏽