where should i start from?

i was thinking to make diary where i can write my thoughts, but then felt it will become personal. so i decided to make a blog and make it public.

also i m not comfortable with the English language. so i am thinking to write in Hindi or Gujarati also.

i feel English language is very good for business deals. you can abuse sophisticated anyone without making him feeling so embarrass. and the main point is i can't find the proper word in english to explain anything with feeling involved in it.