Congratulations and welcome. This hobby will suck you in.
Before others say it, the general rule is 1-2-3...1 week in primary, 2 in secondary, and 3 in the bottles. Keeping that in mind, the taste will continue to improve for a few more weeks so be patient. Its hard to do. I have been trying to keep 3 beers in rotation to make me slow down and allow the taste to mature (currently have a stout ready, IPA just about ready, and hefewiezen getting bottled within the next few days).
The taste you had in your week old beer was probably spot on...or at least what it should be. If it tasted like beer, you did good.