Failed crochets?

This time, I don't know what I did wrong again. Perhaps I used a yarn that's too thick, cos it looks nothing like the finished picture of the pattern. Rather, it looks like a misshapen thing, and I thought it can just look like a sore finger.

Or a pear?
Here is the pattern that I was trying to follow.

This is another question mark. Did I do it right? How am I supposed to single crochet around for the border? It looks like a rotten heart. Here is the pattern that I'm trying to follow.