No no no. No 600,750, or 1000. A 250 is no comparison. I ride a ninja 250 and 650 and the difference is night and day. The average 250 has give or take 25 hp. The 650 approximately 65. A 600-105hp. 1000- close to 180 hp.
Frankly, you are a high risk rider. Your new, mixing drugs or alcohol is a huge risk.
1.Get trained and licensed http://online2.msf-usa.org/msf/Default.aspx ,
2.Wear protective gear -- ATGATT All The Gear, All The Time -- including a helmet manufactured to the standards set by the DOT
3.Ride unimpaired by alcohol or other drugs
4.ALWAYS Ride within your own skill limits
5.Be a lifelong learner by taking refresher rider courses