First : try to use punctuation marks. It`s very difficult to understand your post if you don`t use them.
I suppose that B.com means -although I`m not quite sure - become, doesn`t it?
Your post should sound:
I am a student. I have always tried to write something in my own words but I couldn`t. Tell me how I can write what I want, please.
Secondly : Try to write in your own words, using punctuation marks. We are here to help you.

Student or Learner