NO GO. The displacement is fine, but you'd be well advised to get something without all that nice bodywork for a while before you plunge into a CBR600.
New riders will drop the bike at least a few times....usually when trying to park or maneuver at slow speed. It just happens, trust me.😉
Get something simple like a Yam Seca II or similar for 6months or so until you are used to the weight of a bike and then go for the nicer sportybike. I started with a, 84 Honda VFR 500 and was glad I did....I would have hated to crack up the beautiful bodywork on my Triumph Daytona.😀
Good luck,
Fausto