my university plan (or, sounds better to my ear: My plan for university)

As a freshman,I am looking forward to the university,I accept interest am interested in everything,so I enjoy joined many organizations and clubs,with the passage of time,I find that I am more and more busy. So I cause made/created a detailed plan for studying and work.
There is no doubt that studying is important,when I learn advanced mathematics,I feel it is best with difficulties. But I believe in myself,I believe I will make burden to overcome all kinds of difficulties,no matter how hard they are! I know this is a step-by-step process. So I will present reality and keep trying and take practical bill.
In my university,I am convinced that it is preferable if that I make effects an effort to improve myself,I believe it would be better if keep a good relationship with others.
At college. I make up my mind to admit part the postgraduate entrance exams. I should create a bright future with my own hands! As the old saying goes:where there is a will,there is a way. I believe in myself!

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Good job! I highlighted in orange phrases that didn't make sense. Good luck with university!