Well, yeah that’s unfortunate, but a $100 mistake is worth it if it teaches you to investigate things more thoroughly before calling someone. If anything, I’ve gone too far the other way, I’ll basically go to the ends of the earth to avoid outsourcing a repair, even when it takes me forever to get to it, and it really costs me too much time and I could easily pay for it and enjoy a couple weekends instead. Case in point, I have a little electric piano that was developing an issue with a few keys, and I spent almost 6 months putting off repairing it because I didn’t have time to look into it, then when I finally got to it, it was a bunch of time spent tearing it apart and ordering parts and then many many hours to fix it and put it back together. I probably could have called a tech and had it fixed within a couple days and paid less than $200, but I’m too damn cheap lol. Pretty much same goes for all car repairs, but at least some of those would have been actually way more expensive, and it was worth the crazy long weekends wrenching.