Could you fly the Extra? Possibly, if you kept the control throws low, kept the throttle back and you are very careful in how you fly it but I wouldn't recommend it.

The more likely scenario is that the plane, being very maneuverable, does something you don't expect and it crashes. It has happened to me and a lot of others who jumped up too quickly.

I'd strongly recommend something intermediate such as the 4-Star, GP Rapture, Tiger-2, Pulse-XT or similar. You'll learn a lot and make the experience with the Extra a lot more enjoyable when you finally get there.