Why are you not going to eat with your colleagues? Do you have people you are OK to sit with when you are there?
Please don't disappear.
Can you try to find 1 positive thing each day? It doesn't have to be something huge, but something little like the smell of a cup of tea or flowers coming into bloom or someone smiling at you? That way you start to search for the positives. It's hard, even harder when you are really struggling, but it is important...
