Student loan and kaffarah

Salam, I’m in really desperate need for help. Basically I have a student loan which have interest I repented from it but it’s the only money I have to live. I don’t live with family and they can’t give me money much, I don’t have work and it’s difficult working with no degree, I took it out of necessary. Anyways, I also missed some days of Ramadan and had to pay a certain amount of money because fasting for 4 months ( since I can’t remember if I missed two or 1 day) it would make me quite ill, I decided to pay the money from the riba money I own. Is this sin paid off? :( please help me ...I’m hopeless .. don’t have any money to pay it off and I don’t want the sin of the missed days