First, I'm feeling the exact same way. Still recovering from COVID so I think that's making it harder to focus on applications. Set out a list for yourself (a doable list), and do not allow yourself to go to bed before completing that list. It could be editing your SOP or editing a couple of poems for that day. I find that having a set daily list and not focusing on everything at once is super helpful.
My former professors have been valuable as well. One of them is an MFA low-residency director so he knows exactly what I need for my application. That has taken away some of the anxiety for me. Do you have any former professors who can look at your writing sample and SOP? It might help to have a new set of eyes. I'd would be happy to look at SOP's or writing sample.
Also, make sure to take breaks. I will usually do yoga, watch a stand-up comedy show, drink a cup of tea outside, or cuddle my pets. Take deep breaths and find someone to rant too. You've got this! It will be over soon, and we will all wait for responses together. haha
I hope you feel better soon! Take vitamin C, drink plenty of liquids, and get plenty of rest.