As a student, start with notes. Students may understand the Kreb cycle, can recite diseases in detail but getting a concise history/exam and then giving a precise and pertinent presentation requires ALOT of experience.
As a resident, you should start to get rid of notes completely. When you are a 3rd year resident, All I need is a 1-2 sentence presentation. Such as.
"Mr DOE in bed 4 isa 60 YO male, anginal CP x 2 dys, pain free after ED treatment. Labs benign, EKG benign, pt stable. Will admit to Medicine" or
"Mr Doe in bed 4 is a 60 YO male, abdominal pain x 2 dys, benign exam, workup benign, pain free at this time. Will discharge with follow up"
As an attending, my notes now consist of a Sticker with the pts demographics, Labs I ordered, and each gets a neg sign when they come back. IF something is positive, I write a 1-2 word note (such as H/H low). My presentation to consultants is usully 1-2 sentences. I frame my presentation towards an admission. Such as. Bed 4, 70 YO male, hypoxia pneumonia, stable. Thats it. Consultants needs no more than that. They can pull up the labs/nursing notes if they want detail. MOST do not want anything in detail such as specific labs unless VERY peritent (such as CP with elevated trop).
You will get better. No reason to rush it. NO reason to worry about it. Most will get better as time goes by. Most will be able to handle 10-15 patients simultaneously without much notes at all. Most will be able to complete a chart without very little notes.
As an attending, if you are carrying a sheet of note per patient (I have seen this), you are likely doing something wrong and possibly not fit to be an EM doc.