If you truly want to succeed with Google Adsense you must be in it for the long run. Don't think you are going to generate massive income over night. It does not work that way and if it did everyone would be doing it.
Have passion about your adventure online. Also, understand creating an online presence takes time and patience.
I was where you are a while back. All I can say is don't give up. Take breaks to regroup but don't give up.
Take the time to visit my website. Since I have created this website AND use Hubpages.com I have learned how to earn $3.00 to $5.00 per day and my income increases each month.
I hope my website can help you understand how to increase your earnings and help you understand how Google Adsense "CAN" work in your favor.
Have a great day.