Overwhelmed

I am a 21 year old university student in South Africa. I am supposed to go back to university this year for my last year of undergraduate study. Most degrees have gone back due to high vaccination rates and low covid cases but my faculty keeps on coming up with excuses to not bring us back even though there are only 40 of us in my majors. So we are online for another year with videos recorded from 2020 and no live lectures. I am unable to motivate myself to get up and enjoy life. I am constantly living in the future and can't enjoy the present. I have been unable to meet any people due to being stuck at home and cannot cope with not socialising and not being in an environment filled with people my age. I meet friends on the weekend and I work at coffee shops during the week but it is not enough for me. My home situation is also not good which makes being at home all the time even worse. My dad is severely depressed and we have just had to admit him to hospital and I feel like I have to look after my mom and brohter. I am so anxious that my whole body feels tensed up and I cannot stop thinking and relax or enjoy anything. I feel like I have so few friends and I am always having to initiate conversation and meet ups. And they never seem to care how I feel. It is really really hard and I have barely anyone to talk to. I feel so lonely and down and don't know how I can cope with another year like this.