I'll tell you one thing I definitely know about Satan, he does not demand nor is he interested in slavish worship; and he definitely doesn't desire it. What you do is your own business, but you're not forced to do anything or be anybody. If you want to do things for Satan then you should know that it's just a desire of yours and not something you are being forced to do.
My own reasons for doing RTRs every day and advancing are my own, varying on reasons for Satan, for myself, for humanity and for my home planet. If I wanted to stop at any time I could, but to even think of such seems to go against my very core and makes my soul shudder.
Were I ever to stop, then the fall back is my merit and value. This path is a meritocracy, you are perceived in levels of regard by the actions you do on behalf of it. The more you do the higher you are regarded, the higher the priority of your protection, safety, well-being etc. That is not to say someone who does the bare minimum is not protected, but if all the demons were occupied in saving and helping everyone in some mass incident, those who do more will be tended to first over those who do nothing.
What matters is your loyalty to Satan, your honesty and your devotion to the path. You are free to be yourself with these things in mind and aren't being forced to do anything against your nature.
What I am about to quote are Satan's own words from
The Al Jilwah. "I allow everyone to follow the dictates of his own nature, but he that opposes me will regret it sorely."
You're not a slave here, this isn't xianity.