Clearly you are an awesome applicant. 1st gen should give you an additional boost.
There was recently a thread about Duke and merit $:
I’m sure there are others here with more info on Duke in particular, but @worriedmomucb is 100% right to advise you to FIRST talk to your parents about what they can afford. The UC’s will not give you any money, so can they afford $80k/year? Have you run the NPC for Duke?
(Finally, your UC GPA does not seem right - paging @Gumbymom - did you calculate using Roger’s Hub?)