Girlfriend wants aggressive sex but I am unsure of how to do it. /u/CrazyCapybraya Sex

Basically my (M23) girlfriend (F21)wants rough sex. And I want to give it to her. But I am worried all the time that I will hurt her and cannot get fully into it. She says I can do anything I like, but how I don’t really feel comfortable doing absolutely anything. Moreover, the basic vanilla sex we have been having since we started dating in April has kind of worn out and is pretty by the numbers. Any tips on how to overcome this fear and just kind of let loose? Because I just struggle and maybe it is just as simple as not giving a shit, but that seems counterintuitive. I also haven’t really ever done aggressive sex before so any advice on simplest ways to go about it would be a big help. Thanks

Basically my (M23) girlfriend (F21)wants rough sex. And I want to give it to her. But I am worried all the time that I will hurt her and cannot get fully into it. She says I can do anything I like, but how I don’t really feel comfortable doing absolutely anything. Moreover, the basic vanilla sex we have been having since we started dating in April has kind of worn out and is pretty by the numbers. Any tips on how to overcome this fear and just kind of let loose? Because I just struggle and maybe it is just as simple as not giving a shit, but that seems counterintuitive. I also haven’t really ever done aggressive sex before so any advice on simplest ways to go about it would be a big help. Thanks