First bike and nervous

Hey,
New to the sub and just wanted to express a few of my concerns wondering if anyone has any good insight for me.

I’m buying a CBar125 as my first bike. Ideally I’m hoping to start or even just stay with this bike as a beginner as I’m not interested in fast missile like speeds on a motorcycle.
Nevertheless, I am nervous about riding with how dangerous they can be and how incredibly bad injuries can be on them.

Wondering if anyone can give some insight into how I can get out of my head.
As I said, I’m not one to go super fast; even in my vehicle I’m a steady driver that rarely goes over the speed limit unless passing.
I really only want a bike to cruise and enjoy rather than do dumb shit like lane splitting and insane speeds.

Thanks for the help!