My cat ran away, again?

So I just came home. My mother walks home as I’m feeding stray cats in our neighborhood outside and says “She ran away, you kno” and I get so mad. She is in a careless mood. I tell her how many times it is now. Every time its HER leaving the door open for a few minutes, allowing her to run away. I yell at her. She says “don’t feed the cats that way” – something totally awful to say, I mean you make my cat run away and now saying I should feed the stray cats with a bowl so I don’t ruin the street with cat food??? Wow. I’m beyond upset. Please help me guys. I’m begging you. I’m about to have a heart attack. My cat is nowhere to be seen and my parents don’t care. I’m in my late 20s and don’t want a 9–6 job so I’m saving up money with the arts so I can leave but I’m stuck with them.