<prompt> Human: Im 18m and want to build credit history. I WILL pay every month. Any advice would be awesomeEdit:Thanks all for the mostly good advice. userdumbducky gave the best advice with some math figures. Bank of America has a card that pays 30 quarterly 120year if you pay back balance every month. The equivalent to this with a 5 cash back awards is spending 2,400 a year that I may not spend. I was set on Discover but Bank of America wins!Tl;dr: Bank of America pays back the most.  <response>: If you have no credit so you wont be getting a good rewards package, any card without an annual fee. 