You won’t be able to predict all the challenges you’ll face on a project. For me, that meant spending weeks adapting to WordPress’s back end and diagnosing problems we were having without having the knowledge to always understand exactly what I was looking at. I had a bit of experience with web building, but I couldn’t have got the site to it’s current state without a lot of help from others.
There’s a funny parallel between finishing this site and starting ildsjel. You come up with an idea for something you want to see in the world, you bring people on board, the idea is refined, you apply your individual skills and personalities, it’s refined again, and eventually you have something. Assess your results, and you make changes.