Canyon,
Are you getting help for your mental health?  I see that is the first thing you need to address.
Are you needing to find work because your wife/partner has kicked you out and stopped supporting you?
Yes, that can be scary as well.
One step at a time.  Keep breathing.  Meditate.  Exercise.  Self care.  All that is “working on yourself.”
Such changes can be overwhelming.  I hope you find a counselor/therapist to talk to along with these other things to help cope.
You have two children who depend on you to take care of yourself.
Take care,
Mark