When I found out I had an AN, I scoured the internet to find out everything I could about ANs and what treatments were available. I found this site (ana.org) and read just about every post. You Tube also has a lot of information, especially about people's experiences (how the AN affected them as well as the side effects of the treatments they chose). The more you learn about acoustic neuromas, the less frighten you will be because knowledge is power. Doing this type of research will also better prepare you for what will come when being treated as well as coming up with questions to ask your doctor(s). So use the two weeks prior to your appointment to learn all you can about ANs.
When I read about the treatment experiences of others and its effects on them, I made a mental note and asked if I would be willing to go through the same thing. Doing this will help guide you to learn what options will be best for you. One thing you should keep in mind is when you have consultations, avoid doctors who only do one type of treatment because you will be given biased advice. That is not what you want. You want a treatment that you are comfortable with and what is best for you and not what the doctor is comfortable in doing.
Your primary care physician didn't share much info because ANs are supposed to be rare (so why do so many people have it, lol?). Your neurologist should answer all the questions you have but if you do your own research ahead of time, you probably will not have that many to ask. One thing I found out is there is no correlation between the size of the AN and the severity of the symptoms it causes. Your 7mm AN is classified as small so you have lots of options. Oh, and another thing, you want someone or someplace that has a lot of experience treating these things; after all, you don't want anyone working on your brain with little or no experience. You will find lots of help and support on this forum.
The problem I have about Watch and Wait or Observation is if you wait too long and start to lose your hearing, it will not likely return after treatment (based on my research). My AN was 21mm when I was treated and I had 70% hearing loss in my right ear and I do not expect to get any of that back. ANs are supposed to be very slow growing tumors but there are cases out there that showed very fast growth over a short period of time so monitoring your AN with MRIs will be very important.