New to this community

Im new to this and any help to understand is appreciate it I've always have known I have kinky sexual fantasies didn't really know that there was a name for what different role I was interested in at the time I've recently started dating this girl and I've opened up to her and she said I'm what they call a switch because at times I want control and then I'll want no control. I'm not sure what I'm asking but this is it lol