Help me please. I have an almost 4 year old and I need help helping her.

When she can’t have something she gets frustrated, whines and this causes her to make certain faces and body movements that are difficult for me to deal with. She whines and cries when she can’t have her way. She annoys her sister on purpose and smiles which drives me crazy. She won’t listen. I’ve about had it. I’ve run out of time outs, sit downs where I explain things, I’ve tried what I thought would be helpful but I’m tired of it. I’m stressed out. Please help. via /r/Parenting https://ift.tt/2I8rIqU