new Dog Owner

I believe everything is about adapting to the circumstances. The challenge of becoming a first time dog owner while absent for many hours is not insurmountable. I would not advise you to keep one dog. Left alone at home, it will likely be gloomy as animals also love company. You should look for another dog so that they can keep each other company. Dogs are reasonably resilient and don't require constant feeding so give them food and fluids in the morning to see them through the day. It is important for the pair to be in the same if bracket.