Pm me if you need help my friend. Basically you get the first 3 . Then you get a "next" FP only after the 3 are used or time expired. You get those at kiosks in the park OR from texting at a Disney hotel offering the service to do that for you. At this time a few hotels with CL are doing this. Currently gf cl will do this for you. As I previously posted I pre-prepared a text with a request to the CL so when I got thru the FP machine I could get my request in ASAP!
I never got more than a 4th because we did RD , lunch and lounge time, then FP from5/6,6/7,7/8 for our 3 (give or take). Then we did one more then back for desserts
So after 3 I would ask for headliners ( were not available) and a few other choices as a back up. If you stay in the parks and use FP early you could get more headliners. You can use 3 at MK for example then be done around noon and ask for FP at hs or Epcot. What is available depends on what is available( people cancel, rain or season could effect this). So it is hard to predict.
When dd and dh went in March I was able to change their FP from one park to another and got headliners because dd changed her mind, lol!!!! That was 11:30-12pm.
Hope this helps, Trish