If you can afford a 300, then I say get it. I had very little riding experience, but I found the 300 to be very easy to ride. It takes some people longer than others to pick up a new skill, and maybe you were a little nervous during your safety course. Don't get discouraged. Just take it slow and find an empty parking lot to familiarize yourself with your bike. I suggest you complete the MSF course, but you shouldn't consider the 300 beyond your limits if you take it slow.