Hi Spike99, what you are describing can be part of depression but is also an example of 'distorted thinking'. You cannot be responsible for everything and everything can't be your fault. It is a very painful way to think and feel and most of us have some unhelpful ways of seeing and interpreting the worl around us which causes more pain than we need to suffer.
I found MoodGYM helpful, and it's free, affiliated to Australian National University. HTTPS://Moodgym.anu.edu.au/