geepeeone
Rookie
... ignore the NTRP rating and simply strive to say, beat a 4.5 player three times by the end of the year. That's the same goal, but is instead stated in a more meaningful and satisfying fashion.
This is a more concrete and easier to grasp goal because it acknowledges progress by competing against other players to gauge your level.
I have a similar goal, to progress from 3.0 to 4.0 in 12 months. To assess my progress, I am going to sign up to a local 3.5 tourney this January (my sixth month); a 50% win/loss result should make me a legit 3.5 (at least in my area). If there aren't any tourneys, then maybe play matches against 3.5 players with minor bets (to make it competitive enough). 10 matches should do the trick.
I'll do the same on my 12th month to assess how much of the goal I've achieved: 25% win (acceptable), 50% (mission accomplished!), 75% (I should strive for 4.5).
Again like what pvaudio has said, this is a more meaningful and, to me, a more concrete way of redefining how you assess your accomplishment.