I'm a disappointment and my life sucks

I don't want to make this into a pity party but I'm so sick and tired of this bs. I'm 22 this year and my life sucks. While other people have their lives all figured out by this age, I still feel stuck. I haven't graduated out of college yet. My Liberal Arts GPA is 3.0 and I'm half way through my major. I still don't have a driver's license. I know people who are already working for politicians and taking internships at the government headquarters. I know people who already found their true love and got married. Some of them have kids and lead fairly successful lives. I hope to graduate and work at a college as a secretary and eventually move my way up as a counselor, but I don't know if that's possible since my GPA is low and who would want to hire me, seriously? I'm messed up. I haven't done anything important or right in my life. I burn all my cooking and get into trouble. I stay home and go surfing on net all day because I don't want to face disappointments all over again. I tried to volunteer over the summer and contacted many volunteering places in the city, but they never reached me. I called them, but all the lazy secretaries didn't want me registered without much details about me. I don't want to go back to school to face the noise. Btw, my GPA is low because even though I've tried so hard to get A's, my works either got stolen, my instructors really hated my guts, or believed that no one should get A's (except for people they like; they get A-). I tried to get jobs, but no one wanted to hire me, and I had to put up with my parents and their shit over the summer. In fact, I have to put up with their shit all the time whenever I want to get something accomplished or am close to it. Not to mention, my younger sibling doesn't have his shit together so now it's just quadruple the problems. Fuck this, why are all the problems always lumped to me... I tried so hard. Nothing goes according to plan, but a lot of people and their lives I mentioned above do. They go so smoothly. Sometimes I just want to disappear, or die. I would if my parents don't die right after me because I'm sure that's a firm possibility.

Everyone has different pathways in life. You also can't just think everyone's life is perfect. No ones life is perfect. Everyone has problems with one thing or another. & just because you GPA is a 3.0 that doesn't mean you won't get hired? Some people in college barely make it through and get hired. Also, your parents and younger sibling aren't your responsibilities. You need todo us on yourself. You seem very stressed out. You should take some time to collect yourself together