I won't be down there at that time, but there is no reason to be nervous. People at the parks are welcoming of solo travelers, and that extends beyond just Disney(I also had good luck going to SeaWorld alone). One big thing you should do is get the Memory Maker package. It will save you from having to track down another guests to take photos of you, and you get to download the boards. Other than that, try to meet up with other DISers for meals(easier to get ADRs for 2 or more) and for the rides where you need multiple people in your party(only a handful). You will be down there during
MNSSHP(last day is Nov. 1st), the Epcot Food & Wine Festival, and I think the first days of
MVMCP. Universal also has it's final Halloween Horror Nights event around your dates. Consider whether any of these events are important to you. I would also mention if you opt to visit a water park, get a double walled water proof smartphone pouch for your essentials. It would also be a good option even if you don't, since it is a nice option to tuck away debit cards and your cell phone while going on rides. Definitely take advantage of Evening EMH, especially at Epcot and MK during this time, if you are staying on site. The extra events going on necessitate flexible planning. Also, I know MK has a new fireworks show and Pandora(in AK) is very busy at the moment, though, it may be less so by November. Both rides had a wait in excess of 200 minutes this past weekend(a friend of mine who is a Cast Member posted photos on Facebook of the wait times), around 10AM. I am sure that will come down eventually, but you should still expect a good 60 minute wait since those will be the two rides in AK everyone wants to do for the next year. New ride smell....gotta love it...lol. That's about all I can think of, but if I can be of any further help, once you can send messages, just let me know.