You seem to have some sex shame related to what you want sexually. Nothing wrong with having hangups about that since it's pretty common. Nothing wrong with having kinks even those that are out of the mainstream or even dark. As long as you find a place or person(s) that they can be done safely and consensually nothing wrong with that.
Some current research suggest that kinks have an inborn characteristic similar to sexual orientation. This inborn part does then attaches to some cultural symbols or stimulus.
So relax about what you like and find a way to get it healthy in you life. Sex made you and is more powerful than you. The number of people who have been brought down by ignoring this fact is innumerable. I would recommend reading and listening to Dan Savage. Hearing about other sex positive people's life and problems can give you some perspective.