how too

Okay so I am a girl and I enjoy being dominant. I like to be in control and control my SO.

Buuuut I am having troubles doing it in the bedroom because in all my last relationships I was always sub. Amd I wanna know how to do it while being smaller than my SO. I can't do it as well, I feel like it might seem like a joke since I am so much smaller and can't really control. My partner likes to be pushed around and hurt during sex.

Please help me figure out how to do it without feeling weird since I am small. Sorry if I sound stupid.