So I'm still working on my serger. And it feels a little less difficult, but not much. However, I successfully completed a small project! I started with this shirt from the thrift store, which is several sizes too large, and sized it down.
Refitting it with the serger was so easy! I followed my own easy t-shirt refit tutorial, and it looks a lot more professional with the serger. Not the most exciting project, but it's a start!