Your welcome, much of what I stated will be learned over time, but that is why you can feel free to ask first and then many peers that have been there/ done that can help you avoid these errors in the future. There is no reason to continue to beat your head against the wall when the resources are available. 20+ years ago, you might have had to do more trial and error as homebrewing info was in its infant stages but now there is almost too much available to stumble like this. On the bright side I am glad you are not discouraged and the 2nd will be stellar if you have a mind to do a bit of research outside of the kit instructions now.
Also 1 week is far too short as you now realize. You may have read my response to the other new guy today about banana esters. But if not give it a read as that will spell out why it is important to go at LEAST 2 weeks until you know exactly what is going on with the yeast/ wort/ ferment, for more reasons than just fermenting fully such as your situation.
If you haven’t seen—> look to this free online version of how to brew for plenty of great overall info.
http://www.howtobrew.com
Also using dry yeast is the best recommendation I can give you right now until you understand more of the principles around liquid slurries.
For some good info regarding liquid slurries look to this website:
http://www.mrmalty.com
Specifically this article first:
http://www.mrmalty.com/pitching.php
Then to further understand starters and such:
http://www.mrmalty.com/starter_faq.php
This is just one article there is literally 1000’s of topics about proper O2 in the wort and yeast pitching rates when using liquid slurries.
This calculator then can be used for both dry and liquid yeast to help you understand the concepts discussed within these above articles:
http://www.mrmalty.com/calc/calc.html
Also the forums FAQ’s may provide instant answers also. Do not be afraid to ask as stated above but please consider conducting searches on some of your early questions, because often the same questions and answers have been already discussed 100+ times in the 15 some years this forum has existed.
Peace out.