Not earning rewards!

Hi, im am using the Brave browser for a while as the main default browser on my android phone. I click ads ALL the time they pop up, but my earnings are so misereable! Look at at the picture how many ads i had this month and how much I earned!
My wallet also contains only 70cents of useing around 4 moths! My friend has tge same browser and he is using it less than me, but has 4× times more in earnings, definitely its something wrong here, please help! :frowning: