Even though there's all sorts of DIY guides on the Internet, you don't have to do it all. At times it is just too costly time and material wise for you to attempt it. On the flip side, there are certain things that are insanely cheaper to DIY rather than sending to those who are experts.
Therein lies the frustration of our information overloaded world. You don't want to face loss but at the same time you want to avoid overpaying.
Personally, I find it useful to ask friends who are expert in the area I'm considering to DIY. They can help you to distinguish whether an attempt to DIY is worth it or not.