***** NOT A TEACHER *****
1. The first thing, in my opinion, is for you to ALWAYS capitalize "I" -- not only at the beginning of a sentence.
2. I chuckled (a friendly little laugh) when I read that you "don't have much time!"
a. There are some things that take time -- and writing well is one of them.
3. Most writing teachers tell us that if we wish to write well, then the "magic word" is READ.
a. Read something that interests you. Read and read and read, and you will begin to see how people write. Maybe you will not know it, but you will start to copy them.
i. Since you are interested in business-level and academic-level English, you need to read business journals and academic journals.
(a) There are many business magazines and newspapers online.
(b) Academically speaking, read about the subject that interests you.
4. To write well, you must edit and edit and edit.
a. Look at your first sentence. It might be edited something like this:
"I do not have a problem, but I do need some advice."
Student or Learner