Tutorials/advice for painting a whole house myself?

[Scott Le]

I was originally going to outsource the interior and exterior paint, patching, and pressure washing for my 1200 SF SFH rental, but I ended up being way over budget on the rebuilding of a room and now am desperately trying to slash my remaining expenses. Given that the biggest expense I have left is that painting, it seems like a natural place to start.

I have never really painted before.  I have been watching some Youtube videos, but I wanted to see if anybody here has any tips, good tutorials they've found online, a list of materials to buy, etc? I'm kinda nervous about having to paint a whole house by myself with no experience.  Feels like it would be way too easy for me to screw something up or take like a whole week to do it.  I am considering hiring a friend of mine who is a handyman to help me, but like I said I'm several thousand over budget already and am basically in damage control at this point.