hey there, m18 here. I recently started dating a f18 that is really into bdsm

She told me a time ago that she is really into bdsm and these kind of stuff, she watches films about it and porn too. She is very submissive and like rope play and bondage, we are both virgins and never done anything with other people. I am very shy and can't be dominant with her, do you have any tips for me to how to improve my dominance in the relationship. PS: Sorry if i misstype anything, english is not my nature leanguege.