Can i sue sprint pcs i was 14 now 19?

[Dae Dae]

I am now 19 a college student, when i was 14 i got my first job and went to get a phone from radio shack i thought it was only $50 but plus the deposit i could not afford it and therefore brought a metropcs instead. Sprint billed me $250 for a phone i never purchased then the price kept going up monthly although the bill would say no minutes used, regardless i never payed the bill so i figured they realized their mistake. When i turned 18 i tried to get a student credit card with my bank and got denied i wondered why because i should have had no credit issues. turns out sprint messed up my credit. i could not get financial aid because of my parents, or a student loan because of sprint. i disputed the claim and filed a police report sprint now realized their mistake. i am now currently enrolled in college as a freshman 2 years after i graduated high school because of my credit can i sue sprint because of my time, not getting a loan or a ca,r and messed up credit? how much? and how do i do it?