21F I’m just easily replaceable and nothing is really going for me

At the end of the day not being able to date and having nobody really like me makes me feel extremely undesirable, unlovable and lonely. Almost every night I cry myself to sleep sometimes pass out and wake up with a headache because I hate how I look and I hate my personality and I wish I could be anyone else. I’m not that smart and I’m not gorgeous and I don’t have many friends and no matter how hard I try I simply am not good enough I stopped eating breakfast a long time ago but I just can’t be beautiful. I am wasian and I hate how I look. I work multiple jobs and try to get good grades but I am not happy my GPA isn’t perfect and I am not the best at my work. I feel so devastated that nobody cares enough about me and the things that I have done just for a hug are honestly insane. I have probably posted myself here on Reddit over 100 times and everyone says I am average I can’t deal with that I just want to know that I am not so easily replaceable and I am not going to be overlooked every time and someone will like me. I feel physical pain in my body every night and have had to call crisis lines but still am struggling so much