There's a reason why a good handyperson isn't cheap. Fixing stuff is hard, and if you want to do it right, you should hire someone who knows what they're doing. Or at least put in the time to learn about the task you're undertaking.
Some people do neither. And they pay the price in time, frustration and more bills than they bargained for. These DIY fails are hilarious, but they made for a really bad weekend.