Please tell me it gets better

Im 23F and this is my third week as a paralegal. I have no certification or experience. I’m working remote right now but will start in person on Monday. I am so overwhelmed. I don’t know how to do hardly anything, nothing’s clicking in my brain, and the systems are so hard to work. Plus, to ask a simple question I have to email the attorneys and then wait for them to respond which might take an hour. I have 12 matters open right now and can’t remember anything I have to do because the second I start on a task, I get a new email saying “High importance matter!! Finish this first!!” So my to-do list is schizophrenic and all over the place and about a mile long. I can’t delete any emails either because just because I’ve sent out a letter for a matter doesn’t mean the matter is technically “closed.” So I feel like I’m slowly drowning under a never ending growing pile of matters. My ADHD and OCD is going crazy right now with the disorganized mess I have in my notes, my emails, etc. My mind just feels overfilled and cluttered. Last night I didn’t sleep because I kept dreaming I was getting an email from my bosses saying “Hey, I didn’t receive xxx from you. I’ve been waiting for days.”

Anyone have some life-saving organization app that they track their cases and to-do’s on? Also, can someone please tell me that it will get better? I love these people and I love paralegal work but I’m starting to feel like maybe i’m just not very smart.