I'll tell you from my limited experience I have no idea how to boost attention on RR. I posted on here for people to check my story out but other than that I think the only "advertising" I got was the limited amount of time my new chapters would get when I posted them. I posted the chapters from my first book pretty fast like your every three day thing but now I'm only doing once a week on weekends for book 2 in my series (both are under the same novel on RR but marked as B1 or B2 before the chapter title). I think the biggest thing is just updating consistently which will get some people to follow you and rate your story, etc. Post your story on here once you put it up on RR and I'll follow it and try to read it. Best of Luck!