Ditto to both of the above comments. It takes a little while to discern whether these are normal growing pains or perhaps not the unit for you. No one tells you how different nursing school is from the real nursing world. Nothing can prepare you for that.
One of my very good friends went through the exact same experiences as you, and she recognized that she had poor preceptors and no support in a high turnover unit that had been decimated by half of the staff leaving in a mass exodus due to very poor management changes. She also struggled with the charting, which she came to realize was because 1) she is an extremely detail oriented person, and 2) we have a ridiculous amount of electronic charting which keeps us in front of a computer for more time than at the bedside. Additionally, I can think of very few reasons to "write up" a new grad...we are there to help each other to grow, not point fingers so quickly. I have been an RN for one year on a step-down (neuro) unit this month, and only in the last few weeks did I come to realize that I am starting to find my own comfort level...but I still ask questions for anything about which I am uncertain (daily), and I also strive to reassure the new grads coming behind me with their own uncertainty. I have had nurses with 5 years' experience tell me they learn new things every day. Confer with your fellow grads, and you will find that some will spend the first 6-12 months somewhere in misery, only to discover it is just not suited to their skills and strengths. The experience is not a waste, and it is okay to take your experience to another unit. There is no wrong answer...just keep putting one foot in front of another, you will find the path that is right for you. By the way, after 9 months my friend applied to a critical care unit after she could take no more negativity, and has found a friendlier, detail-oriented unit with 1:2 ratio that suits her perfectly. Best of luck to you!!