Adrenaline Buddy/Buddies

Just moved here to Miami from the middle of a couple cornfields. I've done so little in my life, and I want to start doing all the things that I allowed a man to stop me from doing for so many years.... Fast bikes ..fast cars...skydiving ...bungee jumping ... I just want some adrenaline. None of the friends that I've made here, want anything to do with those things. So, I'm trying to find like-minded people or groups in the area?