I think the mental health nurse might be speaking about how hard therapy can be, that it can disrupt or add chaos to our lives at times. It can be so hard to work on the things we need to work on. But she surely should recognize that you need support right now as you deal with what the circumstances of your life currently - help to get to the point where you are in a 'stronger mental state'. Could you ask the MHN for someone to give you support now, and deeper therapy a bit later?