Inheriting my grandparents estate at age 28?

well my grandmother past away a week ago and my grandfather died 18 years ago.....after goin through a safe i found that i'am the beneficiary to practically the entire estate other than 150,000 going to my mother who were not on always good terms with my grandmother.....anyways, i'm looking at (according to what i've skimmed through) at inheriting close to 7-8 million....it's sorta like winning the lottery.....i make a couple thousand away for 100k at the present time. i think i'm gonna quit my jobs and just go on college spring break when it comes around and just pretend like i'm in college for the rest of my life...wouldn't that be ok?