OP, that was me a few months ago. i felt that my kids were suffering because i was so stressed out, on edge and had no patience. we also were arguing with my husband all the time about work, politics and all the instability.
my PCP recommended trying meds. i started taking antidepressants and it's been amazing. i am relaxed, the edge went away. i have more patience for kids. i just feel so much better now. it did take a couple of tries: the first medicine was giving me regular once a week headaches.
this second one gives me light nausea in the first half of the day every now and then, but nothing crazy. and it is less and less now that it's been a couple of months.
working with a therapist did not do it for me, though she is helpful with other issues. can't recommend her as she is located out of country.