I am really very much confused now a days. I am doing my bachelor of business administration (BBA) first year.

I wanted to start preparation but no one had guided me yet so I decided to join forum.I want to start from zero & I asked from those who are aspirants and I also joined one academy's seminar on 9th march. They were saying that you have to join academy in 3 months we will make you able to attempt in css .
I was really confused what to do now !! I don't believe in academies
I want to start my preparation myself

there are few questions coming in my mind.

What should I do now ?
Should I start from english or grammar or what ?
How to start and what things should be done from starting from zero ?

My age is 19 and I have ample of time BUT NO sincere guide
seniors help me and tell me the way and full time table to start