''@Totalwasteofpaper
But honeslty its a month. You sound like you have fairly low resilience. ''
Completely inappropriate comment.
You know nothing of the OP or of her circumstances.
Dealing with people with mental health issues when you are struggling yourself mentally and physically is also not appropriate because you would not be able to give them the best possible care.
It is the sensible decision to make to want to remove yourself from that environment rather than risk making the wrong decision when you have vulnerable people in your care.
Back to you OP:
Check your contract and what notice you have to give if you are still in your probation period. Negotiate to take any outstanding days off and if you are really too unwell, ask your GP to sign you off for the duration of your notice.
I worked with people with mental health issues and other complex needs and it was really draining and frankly dangerous. The environment itself felt unsafe (I was expected to work with people who had committed serious offences like rape and even murder) and I had concerns that the charity I worked for was forcing us to support people we were not really equipped/trained to work with without the right safeguarding measures in place.
I am having the same issue at the moment working with homeless people with complex needs (although I am no longer front line staff) and working in unsafe environment and I am making plans to live the sector entirely because of it.
I think with cuts to services, short-staffing and increased demand for mental health support staff are just burning out and I completely understand how you would want to quit that type of job.