That's good news, Lil, that you're planning to keep the thread running. 
I think you've hit the nail on the head - I need to put the fun back into my running. For the first few months of the year I was so happy to be back running again uninjured that I didn't care what speed I was running at, I was just grateful to be running. Now that the initial euphoria has worn off, I'm starting to obsess about how slow I am, and the more despondent I get, the less I want to run. Do I need to be faster? No. I want to be, but I don't need to be - so I'll remind myself of that from now on. I'm only competing with myself!
There are 4 parkruns within a 10 mile radius of my house so I have no reason not to do one. What's stopping me is partly my lack of speed (I know it's not a race, but I'll be a lot slower than I was for 5k this time last year and it's hard not to compare), but also the fact that a 9.30am start is about 10 hours too early for me - I'm rubbish at running in the morning, I only ever run in the evening. I really should do one though, so I'll put that on my 'to do' list for this year!