Trading for the first time and first day in forex markets can be very exciting and I am sure for everybody and no body ever forgets their first day of trading .
If you made 4 $ on your very first day the most important fact is that you made profits on very first trade that is very good and moreover 4 % returns is very good if you believe in my opinion . Also Scalping is good and difficult so making profits by scalping is yet another great achievement .Also you mentioned that in 10 mins of trading you made 30 $ which is very difficult and awesome thing to do .
If you continue to trade the same way or you must have become a very good and successful trader by now as this incident dates back to 2011 .