>> Of course. But I would like to hear opinions of people, who are already Satanists on whether or not a person like me should join the Church, that is a person who is not so much after theory, but after actions of indulgence, if you know, what I mean.<<
Your sexual preferences are your own business.
However, you should not join the Church of Satan
simply as a sexual hunting ground, no. If you do that you'll almost certainly make a pest of yourself.
And if you have read both Anton LaVey's and High Priest Peter H. Gilmore's essays... then you'll know how pests are treated by Satanists. Especially those making unwanted sexual advances.
From what you say here so far I'd say no, you probably shouldn't join.