Hi
First I have a small admin request for you - Please select the right forum when you open a thread for your essay. This was opened in Writing Feedback and I moved it to Scholarship Essays which is the most appropriate forum. This is not just a forum rule, but also helps you earn more feedbacks. :)
When you have spent most of the last ten years of your academic life working to earn an "A" or preparing for a Comprehensive Assessment Test (or any kind of standardized testing) the moment you enter a liberal academic setting, focused solely on the intent of learning rather than passing, it is both eye opening and challenging. The challenge of adapting to a new academic curriculum, far different from the curriculum that I was indoctrinated to follow during my pre-college years, is a challenge that I have faced as a college freshman during my first semester.
This first sentence and the second means almost just the same. I think you should not drag on this idea too much and with one line you should have managed saying it.
Well... you say it's been a challenge, but it seems your stress been released from the former to latter... So, nothing much has been said about for us to see it's been a challenge. If you say it was a challenge then you need to tell them what were those challenges, were you loaded with day to day assignments that you didn't experience in the previous system? or you had to keep doing homework everyday ? This does not give the impression that you had any challenges in the later system... Being exposed to a more lenient system is not actually a challeng.