Actually, it depends on your niche! There are niche that have single clicks but receive a lot of earnings. This is normal especially in arcade category.
arcade sites is one of the low pay niche. Try to increase your traffic and CTR to earn more Good luck
you need to change the content on your page so Google will show ad words that have a higher payout. The way you have it now it is going to take a forever to get a decent salary from your website. finance and mortgages have among the best payouts.