My 5K was today. I did run....just not all of it. I was able to walk a bit and then run again so that part was good. I didn't stop and just walk the rest. I even finished running. For the most part, I think it was my mind more than my body that was telling me I had to walk. I need to get over that. But I also was running at a faster pace than any of my training runs.
I am not giving up on running either. I am already looking for my next event. Hopefully, I can get over the mental issue before then.