It took me around 100 days to make my first 1 btc but after that every thing got fast. So how long did it take you to make the first btc? and I would like to know how did you get those. I got mine mostly by selling services and small faucets 
I have never bought a single BTC in my life, when i first found out about the bitcoin network it was pretty hard but after i managed to collect 1 BTC i turned it into 46 BTC the same day.