Hi and welcome to the forum.. there are some really great people on here and many will offer advice I am sure.. one thing you will find is that ANs are slow growing , benign tumors. Yours is small so in my opinion,, and I am not a Dr or in the medical field,, you have time to take a deep breath and do plenty of research on your options..
You don't mention what your symptoms are or the "location" of the tumor,, all are important in determining treatment. You should have time to watch and wait as we call it,, which is to have 6 mo. and then annual MRIs to see if it grows within that timeframe.. You have a good Dr. and medical facility in House,, I am sure you will get valuable info from them.. I sent my MRI out there for consult and gained valuable info into options ,, even though I did not use them for my surgery , about 4 mo ago..
I also have FEP BC/BS and they paid VERY well,, I did not have to have any referrals prior to making appt. and they paid 100% of inpatient costs and I believe about 80% of Dr costs etc.... I ended up with two surgeries 4 days apart and a week in hospital and 5 days in ICU.. but with the BC/BS the Dr/hospitals have agreed to specific amounts they will take and you will not be responsible for as much as is billed.... make sense??? ,,,, this is not "cheap" surgery,, but you have good insurance.
That being said,, you may also want to consider IF you will have insurance once you are "off' of your parents plan,, that MAY be a factor in your decision making.. but I believe you can be 26 yrs old now before you drop off..
Everyone's experiences are different with these "buggers",, so it is hard to "know' just what your outcome will be,, but read all you can from different people and you will see some of the outcomes,, and keep in mind that many of those with GOOD outcomes don't necessarily return to site to report,, they just move on..
TRY not to be overly concerned at this point in your journey,, you are young and have a small tumor with presumably time to make an informed decision.. maybe when your parents return from their trip they will be more support for you and hopefully will go to a Dr visit with you so they can "see" what you are dealing with. A friend to go with you is a very good idea too as there will be MUCH info given and believe me you will not remember most of what is said.... at least I did not,,,
Good luck to you,, maybe you can find a support group in your area and attend a meeting,, that is also very helpful at the beginning.. we are all with you in spirit and thoughts/prayers,,, we know just what you are going through,, it is not an easy journey for any of us,, and there are definitely NO guarantees with any of the treatments,, but it is entirely YOUR decision to make,, as overwhelming as that can be at ANY age,, I really hope you get the support you need from friend or family... keep us informed and know we care!!! Try to get yourself through school and then worry about this,, I think you have time on your side and finishing school successfully is the most important thing at this point....Hopefully you will have a good visit with Dr and gain more info.. recovery for most of us I believe takes at least 2-3 months before you feel able to "get on with life",, and that all depends on results of procedure.. Jane