Hello Simon and Martin,
Welcome to the forum. I realize you are not here because of an acoustic neuroma, but much of the advice here applies to getting started in life as well.
The first three days don't count, perhaps not even the first three months in your case. Just rest, take frequent naps, and get as much nourishment as you can. You have just been born; give yourself a chance to recover. Give your Mom a chance too.
You may feel a little wonky headed at times, especially when you decide to try walking instead of crawling. Be patient and don't give up; in time, you will be trotting around like the rest of us. You may also find it difficult to talk at first. Give your brain a chance to adjust to your new circumstances; as it all becomes more familiar, you can start talking to the people closest to you. Before you know it you will be joining in with everyone.
Although we can share our stories with you, everyone has a different experience with life. As the famous philosopher Forrest Gump once said, life is like a box of chocolates - you never know what you're going to get. You will find out what a box of chocolates is in due time, and you will find out where your life is going to take you in due time as well. Plan on enjoying the journey.
Best wishes to you and your Mom,
Steve