I get asked by a number of people what it takes to build your own PC. Here are some resources to read/watch to get an idea.
NewEgg's PC Building Guide:
Very detailed YouTube Video:
Also, Henry Cavill building a PC during quarantine. Pretty respectable for an Actor/Superman:
From how stuff works:
From Wiki How:
The main point it, its relatively easy. You have to have the right parts and make sure they all fit where they are supposed to go, and NEVER force anything.