So far you have received what I would consider, some sage advice. Let me some up my version of the same message.
IMHO a hybrid type bike is best for you until you get your skills back and your biking fitness up. Any bike style, a hybrid, a hard tail MTB or even a cross bike will do, I would strongly recommend a bike without a suspension fork. Find something that is comfortable and you feel stable on. Don't be afraid to invest some money in it, get good components. If you make the right choice you will have this bike for a long time (let's call it N).
N+1 may come along later, it's style will depend on your desires, could be a road bike, a full blown MTB, who knows. But when you want that evening stroll around the neighborhood, that ride with the grand kids, or the quick trip down to the grocery store out will come N.