I have only read the original post (first post in this thread) so excuse me if I am saying something others have stated...

I see in the original post that you are 16. BDSM sites online have age limits .....usually...(my wife and I are in a few)

if you read your sites home page you may find some info that says things like....

BDSM is a fetish where there is one or more dominant persons (the one that is all controlling, doles out discipline/ punishments for anything that the dom person feels is wrong that the other person is saying or doing.( the other person is called the sub, submissive = person who has no control, or decisions)

in BDSM anything goes and is not called abusive.....unless.... the dom does not stop / honor the code word that means stop.

everything that I have read in the original post does fit with what goes on in the BDSM situations. including you stated in your post when you want to stop your dom does stop.

if you dont want to be in a BDSM relationship online or off my suggestion is tell your dom you are no longer interested in BDSM then have no more contact with him if he wants to continue to be in the BDSM world. he will find another "sub" who is into the same things that he is into (his being the dom controlling everything.)

another suggestion is contact your doctor or a therapist who can help you figure out why at age 16 you wanted to be in a BDSM which is a world where one wants to be abused/ disciplined and the other wants to be in complete control.