An interesting experience and challenge was just completed in England. A novice/entry level player, Sam Priestley, played every day, with coaching, for a one year period (Jan 2014 - Jan 2015) to see is was possible to break into Top 250 male players in England. He didn't achieve the goal but was a great journey to follow.
To view the 5min video clip showing progression for the one year click, Sam Priestley - TT every day for one year