My mental health and what's wrong?

I constantly feel emotional, frustrated and angry even on petty things.I react poorly even when I know I'm wrong and I shouldn't react that way.I've been crying everyday since past one month and have procrastinated doing my college assignment to the extent that day after tomorrow I have my submission and I haven't done a single thing.I'm a design student and honestly I love the assignments I get they're very interesting but I can't make myself do them and when yesterday I forced myself to do it I ended up crying after 20-25 min.I constantly feel insecure about myself and the fear of being judged by others have given me high social anxiety to the point that I don't even enter the cafe if there are even 2-3 people sitting inside.I also constantly feel insecure in my relationship and everything that I'm feeling just seems so invalid that I can't even feel happy now without making a conscious effort and even a small inconvenience makes me emotional and I assume the worst in every situation