HELP! Need advise!

Before I met my current boyfriend of two years I was a freaky girl. Any other relationships I was in I was the one saying where to put there hands and telling them to pull my hair or randomly going down on them but when I met my current boyfriend he had such a dominant personality it over ruled mine. For example, if I tried to switch it up like try a new position of try kissing his neck during sex he just moves me or stops it. So needless to say I’ve been pretty timid since the first few times we had sex . I’ve been afraid of rejection. Basically my question is, how do I get back to my kinky self this far into the relationship? I don’t want to ruin anything or cause any issues if I make a drastic change and become “too much” for his sexual preference. 😕