happy birthday, now u can go do more adult stuff. wait until you turn 25 at which point you can rent a car and are no longer bound by any age restrictions :^)
i still have a couple years to go personally until i reach 21 (at which point i can legally go to a casino and drink), last year i turned 18 and that really resulted in me starting my adult life and getting my stuff together for once. looking forward to hitting 19 next month