Highlander79 on "Bootstrap integration?"

So, I am rather new to coding, but I have been trying to find resources on how to incorporate Bootstrap with Wordpress. The most recent articles I could find on this topic were from 2013, and when I followed them, I would get a lot of errors with the raw code showing through where a header or sidebar should be. I made some basic child themes to test with, so nothing actually affected my site.
Also, are there any ways to use different templates for different pages? For instance, I would like the home page to be a bold full screen image and also have a "blog" style page with a 4x4 grid of recent posts.
I know this is a lot, but any help would be greatly appreciated!