Ritual can definitely be practiced at home. In fact, that's where its best performed, and it can be as elaborate or simple as you need it to be to put you "in the moment".
As for some of the traditional elements of ritual, The Satanic Bible covers a lot of the basic types and formats and The Satanic Rituals get into more elaborate and/or historical, but at the end of the day, the ritual is for you. As long as its not harming anyone who doesn't wish or deserve it, it can be whatever you need it to be in the confines of the ritual chamber.