Majella,
I am now just over five years post-surgery. Some problems remain. I put ointment in my left eye every night as part of my night-time ritual. Despite looking fine to most normies, I have left-side facial quirks at times. Also, when I am physically tired, I can feel the spasms on my left cheek and they can get pretty bad at times. If i cry emotionally, then I have tears only my right side, but allergies and spicy food may bring tears to both eyes.
The emotional issues following these surgeries are part and parcel with recovery and there severity varies across patients. Don't be shy about having depression treated, even if you think it is just periodic bouts of feeling sad or down. This is all challenging and can be overwhelming at times.
The only thing else I can recommend is lots of walking for your dizziness and practice identifying local horizontals to assist your brain in learning to cope. When you feel comfortable, you might try other things like learning to juggle while walking. At one point, I practiced juggling while walking up down and stairs to really retrain my brain. I also used Wii Balance board a lot, playing a lot of the games like that made good use of balancing in play, like downhill skiiing.
I hope this helpful,
Tod