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:
https://www.neweggbusiness.com/smartbuyer/buying-guides/building-pc-ultimate-beginners-guide-part-1/
Very detailed YouTube Video:
https://www.youtube.com/watch?v=2XGgmkiw2tU
Also, Henry Cavill building a PC during quarantine. Pretty respectable for an Actor/Superman:
https://www.youtube.com/watch?v=G2gYUVQrLzQ
From how stuff works:
How to Build a Computer | HowStuffWorks
From Wiki How:
How to Build a Computer (with Pictures) – wikiHow
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.