I personally think this show is great, but that will not help you.
If you are offended by the sex-scenes, you should stop watching, they will not go away. If you are offended by the random killing, that will increase (and based on the books it will happen more often).
It is a complex show, with many characters and schemes. You have to pay attention, to follow the story. The author (George R.R. Martin) is influenced by historical events like the wars of the Roses, and actually I believe this show somewhat realistically a medieval world. Included all the sex and the intrigues and the killing.