With deep respect, I will point out that people who work outside of their homes also have times they feel sad, bored and frustrated with their jobs and their surroundings. Having said that, I am sorry to hear you are feeling that way. It's not surprising you are feeling that way given how isolated you are. I would be very unhappy too if it were just me all the time. Is there any way to make some people contact part of your daily routine, like taking a 15 minute walk at lunch time to get outside, get some sunshine and soak in the surroundings, go grab a coffee or something, have a chat with a neighbour or barista? It's good to get online here too