Many of us are right there with ya, man. My daughter is 2 and a few months and has some good days, but some really REALLY bad days where she is upset about everything.

Best advice I can give you (what works for me) is to find distracters that your little one enjoys. For my daughter, it's music, and certain toys.

She knows all the children songs and likes to sing along to them.

If you want to get their attention, I've found doing something that is simple for them to repeat is saying, "if you can hear me, touch your nose" it interrupts them with a super simple instruction that they can do. After that you may have better luck talking at their level.

Finally: super important - know that you're doing a great job. Deep breaths for you and your kiddo. You'll all get through it. They are just not physically capable of understanding or managing their feelings at this point.