I'd say to find yourself, definitely use the resources that are available. Like others have said, use the resources, use the internet. Figure out what really makes you excited or happy and once you know what you really like doing, establish the things that you absolutely won't do and the things that you'll maybe compromise on, depending on the other person. The best way to be a good sub, in my opinion, is to really know yourself and know what kind of person you want to submit to. Cuz obviously, it won't work for just anyone.