2 btc per week is to much with a $200. in long term goal i think its achievable, for now just earn knowledge, without learning, no earning. then focus in gaining and earning some bitcoins. try to start trading in bitcoin with $200 while earning some in sig. campaign, faucets, mining or any ways you can do to earn bitcoins. just use the search engine to know how or where to earn bitcoin. road to  2 btc/week is not possible in long term goal. just focus on it.