seriously man i would reccomend you buy a dirtbike like a 125 or 250 depending on your weight and ride that for a few months, then sell it and buy like a ninja 500 or something for a few months and THEN in 6 months from today you could have a nice 600 and be confident enough to use it properly

there is a world of difference between the dirt and the street but somethings like balance, shifting, clutch and throttle control are best learned on the dirt IMO especially with a bike thats made to be dropped and not have any damage

if my gixxer goes down even in my driveway thats $1000 at least...