Quick last note CheepBeer (well, probably not the last)
During the carbonation cycle, it's ok to have a sample of the beer after week one, another bottle at week two and another at three... Some people do it weekly until the beer is where it needs to be.
Me, myself and I (others might agree but I'm not speaking for the masses, so for now just we three) agree tasting beers through different stages of carbonation is important in understanding the changes that happen as a beer carbonates and ages.
So them a try. After a while of doing this you'll get a feel for things and will gain knowledge, experience and confidence in the process.
One thing that is pretty important is to chill the test beer for a few days before trying it. The beer is carbonating but not all the CO2 is in the beer, a lot of it is in the head space. Chilling the beer will help the CO2 dissolve into the beer so carbonation throughout the sample is equal, this is not an immediate process, takes some time. One fellow on here recommends at least a week at fridge temps before sampling..
Skip the chilling step, and pretty much what happens is a big head in the beer glass and it might look tasty, but you'll find the beer to be be flat; all the carbonation will be sitting at the top of the beer, in foam.
As an example, there won't be tiny bubbles coming off the bottom of the glass (think of a BMC in a glass, the bubbles off the bottom = good carbonation),
Making beer = Patience. Best way to gain paitence is make more beer!