If you want to be better at AdWords start studying new fields. The following skills and their further development are key to succeed in AdWords:
- Sales Techniques – I love HubSpot’s sales blog
- Business 101
- Landing Page Optimization – Unbounce.com is an amazing resource
- Conversion Rate Optimization: Read the 2nd Edition of Steve Krug’s ‘Don’t Make Me Think’
- SEO – Moz.com and Distilled.net has great resources
- Social Media
I rate this a 6 out of 10 for AdWords content.