I am not sure the previous comment was very helpful. I have done similar to you over a longer period regarding money from my family and I did also take money without pemission -once.
Did you make arrangement to pay back the 400 usd>? Get in to see someone or go to GA meetings. YOu have shortcutted my 30 year descent into shit, but you need to take further action or for sure it will get worse. Try not to feel too bad about yourself, but if you are genuinely a good person then take action so as not to repeat above behaviour….
