It’s just that sometimes trying to take all this new information in and trying to get it right every time sometimes overloads the brain
In USAF pilot training, we call that "trying to sip from a firehose". True, isn't it?
One benefit of going through pilot training as a class of students (we had about 35 students in each section) is that you get to see your fellow classmates going through the exact same struggles as you. You can also look to the class ahead of you which was good for two reasons: 1) you can find out a bit about what is to come next, and 2) you can look at some of those students and say "Geez, if that guy can make it through this, I can as well."
You don't get that same benefit as a lone student, but I can assure you along with the others that your feelings are completely normal.
Best wishes!