Clean and sanitize. If you aren't doing a full boil (only boiling 2.5 gallons then topping off) add only 1/2 the liquid malt extract at the beginning. Then add the rest with about 10 minutes to go. Also, take it off the heat when you add the extracts until you are 100% Sure that it is all dissolved in the water. If not, there is a good chance it will scorch on the bottom of your pot. Cool everything down as soon as you can. Then, just because your room temp is 68 degrees, doesn't mean the beer will be fermenting at that temperature. If you get an ale kit (get an ale kit, lagers are a whole different ball game of temperature control) you want it to ferment under 70 degrees. So keep an eye on it, if you have to, put an ice pack or 2 next to the bucket. Then, even though you will want to taste it, give it time to age. 3 weeks primary, then another 3 weeks in bottles. If you taste it too early, you'll wonder what you did wrong, when really, the only thing you did wrong was taste it too early. The kits instructions will lie to you. It will not be ready to drink from extract to final beer in one month.
I only use a carboy for dry hopping or if I don't have an open keg. But, that's because I keg. I leave my beers in primary for 3 weeks, then I just rack it to a keg and let it sit there for another couple of weeks, while adding CO2 to it on a daily basis.
Basically, take your time, plan everything out well and you won't be disappointed. Best thing I ever did was start brewing my own. I can have whatever style of beer I want on tap at any time. It's a wonderful hobby. I do suggest picking up some Starsan though. It's the easiest sanitizer to deal with. it's a no rinse sanitizer, so you don't have to worry about rinsing everything out, just drain it off and you are good to go. Basically though, don't sweat it. In the end, as long as you sanitize, it's really hard to not make beer. It might not be the best beer you've ever had before, but it will be beer and you'll learn a lot for your next brew.
After that, I would look into a kegging set up. You aren't washing and sanitizing 50 bottles every couple of weeks. One container, on tap and 5 gallons is actually a lot more portable than people think.
Also, visit homebrewtalk.com. There is an endless wealth of information there.