getting really frustrated with this copy paste thing.... i cant do it....

ok here what im doing...
-open the browser.....
-drag or swipe from left to right...
-icon with an arrow appears on the right bottom corner...
-clicked it...
-then drag the stylus on the desired text im gonna copy... (this is where the problem starts) when i drag the whole page drags with it. i cannot highlight a text on the browser.... the only thing happens when i click the arrow on the right corner of the screen is the address bar appears. thats it...

i dont know what else to do?