Help!

I’m feeling kind of sad cause today was not a really good day in terms of my ocd. I was feeling kind of foggy/numb and that send me to spiraling. I’m 21 years old currently studying but my family has been having trouble with money for the last couple years(we’re just me and my mom) and I kinda want to get a job but everything is far from my home and I wouldn’t be able to return back at night, also it’s either way more expensive to move or the schedule wouldn’t let me take my classes. The point is that because of that every time my mom is stress tends to treat me bad, she speaks to me like I’m stupid or she just screams to nothing cursing all life and everything and that actually makes me feel soo bad and guilty for not doing anything, I know it’s hard for me to get a job that actually helps us without quitting school but that doesn’t stop me from feeling like I’m a burden. I want to help, I want to maybe hug her or something but I know she will be angrier and probably will reject it. So that’s it, I just feel like she punishes me for the stress she’s carrying and I get it but one day is happy and it feels like all love and the next is treating me like that, Idk it’s hard (also I feel like I shouldn’t be saying this cause it’s all my fault) 🫤

It's been a year since I've been able to stay home alone. I don't know how to fight this. I feel like the world will collapse on me. That the house will cave in. Or I'll just lose my mind and scream and run outside screaming and saying the world is falling type thing. I don't know how to help myself. I'm to scared to even try to be alone. I have to have my son 18 stay home with me or my aunt stay with me when my son does leave. It's horrible. I feel like I'm holding my son back from so much. I don't know how to beat this. Please help

Earlier I posted about trying to get back to sitting on my sofa without a blanket covering it. And I did it, but now my day has been ruined. I left for two seconds and my cat decided to sit there, so now it's not clean anymore. This is because sometimes she's had number two stuck to her and no longer trust that she's clean. It took so much for me to just do that and sit without a blanket and now I'm just so done. I'm also scared to walk anywhere in my house. We sometimes get slugs in our conservatory and I don't walk in there anymore because there can be slug slime trails (it's carpet). The thing is, my mum regularly goes in there, my dad too. And then they proceed to walk around the rest of the house without changing shoes or anything. I'm just panicking because I was having a good day and now I feel like I'm isolated to my bedroom.