Financial aid and stuff

Hey there! Just recently got a Chancellor’s Award of $10,500 for civil engineering (still pretty expensive though haha RIP).

If I do (significantly) better later in high school, can I appeal for more merit money with a new transcript? Or is that just for financial aid, not merit? Also, when should I expect a financial aid package if I filed FAFSA for MC already, and I just recently got my acceptance & merit letter? (>.< I’m just really worried about money struggles, honestly.) What is the typical financial aid given if EFC=0?

Sorry for the long questions, by the way. And thanks for taking the time to answer, in advance! :smiley: