Im drowning in emotions and financial debt since the suicide of my fiance/kids dad

I am so overwhelmed with grief and I feel like I am completely failing my kids! Their dad ( my fiance) committed suicide in our bedroom recently and I dont know what to do, we left with just the clothes on our backs and shoes on our feet and with a heartbreak that I didnt even knew existed.. I have no money, I have no family and I wasnt able to bring myself to go back into that house to get any of our belongings, so here I am trying to rebuild and gather even the most immediate necessities for my kids and I dont know what else to do, so I was hoping to see if anyone had some canned foods they didnt plan on using or kids clothes they no longer need that may be willing to part with or kids shoes by chance? Anything will help and would be a blessing at this point!! Thank your for taking time outta your day to read this, God Bless