I had a similar size AN (4.5 CM) removed two years and 4 months ago. I really struggled the first year. If the 8th nerve is intact it will recover some. I still have to put drops in my left eye when I'm outside in the wind, especially when the temp. is cool. Inside it waters enough to keep up, but any wind from air conditioner, heater, light breeze it ususally starts to dry out.
Faical Nerve IMO is slow to recover and take along time to gain any movement. I have about everything except lift. Luckily I have very little sag on the left side, unless I smile you probably couldn't tell unless you've look really close. My balance is real good, only want to topple over if bending down really low, but, I get off balance real easy especially if on uneven or moving surface.
I am still fighting Migraines and left eye not fully watering yet. IMO NOISE induces them. Most days I cannot stand any noise. TV less than 4 bars, Car radio less than two bars. At that level you can't hear them with the house heating system blower running or going down the road above 40 MPH. I also can't stand any clanking of pots and pans or silverware, usally wear an ear plug in my good ear 80% of the time. One a good note the buzzing in my left ear seems to be getting quieter when I not around High pitched noises. Driving at night sucks! Bright lights seems to induce headaches also.
Hopefully you will recover some and be able to function somewhat normally. IMO it will never be the same. You should be able to fish OK if you make sure you have plenty of fluid to water your eye in case the wind gets up. I wear Motorcycle goggles most of the time when I'm out in windy, dusty, or real cool air when I walk the dog. You might try that. I also had the gold weight. If I had it to do over again I would of just got the stick on's for no longer than I needed it Was able to close my eye about 4 months after operation.
I been reading forums for along time. Some have it alot better and some have it alot worse. I am just glad to be alive, functioning , and able to work and do most things I like to do. It should get better it just takes aLONG time IMO, good luck and hope your recovery is quick. I also think age, how long the AN has been pressing on things, and how things go during the operation determine's how well you recover. I was under for 17 hours and change and had some severe head pain afterwards and was on Morphin for about two days.