Take time to learn how AdWords works. ;)
AdWords can work exceptionally well, or it can be pretty frustrating. And just where an advertiser ends up on this broad continuum depends a lot on how much effort the he or she puts into understanding it.
Here are some resources which are useful in understanding the nuances of AdWords:
* This Forum, of course. ;)
* Searchable Help Center:
[adwords.google.com...]
* Optimization Tips:
[adwords.google.com...]
* Demos and Guides:
[adwords.google.com...]
* Editorial Guidelines:
[adwords.google.com...]
* AdWords Learning Center
[google.com...]
Lastly, here is another top tip, which, when applied will really help newer advertisers to do better. IMO, at least:
Be very 'targeted' rather than 'general', as you pick your keywords, create your Ad Groups, write your ads, etc.
I wish you the best of success!
AWA