Terrible Two!

So, my 2 year old has really been testing my patience lately. All the way home tonight she screamed in the car because she dropped her flip flop. Then we hand her one because we couldn't reach the other one and she throws it down and continues to scream. I don't mean cry or whine (which is annoying enough!) but SCREAM! Not to mention it's pouring down rain and I'm trying to drive and reprimand her at the same time. She has ZERO patience. My husband was making her popcorn and she was pitching a fit because it wasn't popping fast enough. This age is really putting a test to my nerves, some days I am so stressed I want to cry! She will act this way one day and the next day be as pleasant and sweet as can be. I have to remind myself God has given me this child to teach me something and obviously He doesn't think I've achieved that yet because we aren't making any progress! Haha! I know it gets easier because I rarely have to discipline my 4 year old, he's very well behaved and such a loving little boy I couldn't be more thankful for the ease this child brings us. But, in the meantime I guess I will still be learning the lesson God has to teach me.