Life is impossible

I am still trying to figure out how I have made such a mess of my life.  My ex refuses to get a job and to help with  any of my daughter's expenses.  The expenses have become overwhelming, which is difficult.  I hate him for trying to punish me through her and that is exactly what he is doing.  It is depressing.  On top of that, I still find myself in a toxic relationship that I just cannot seem to get myself out of.  I try and I try and then I get depressed and go back.  I think I may need to go back to therapy.  I am feeling overwhelmed with depression.