After you file

I haven't recieved fed refund or my stimulus check....i am so scared my landlord is demanding rent or she will be looking into evicting me....i dont know what to do im sooo afraid im gonna end up homeless....im not asking for anything im not entitled to... I made less than 15,000 last year how difficult could it be to get my refund to me....im a nervous wreck and don't know where to turn~