I've heard this bullshit before. I felt that way a while back.
You say your parents are enabling you, but they really aren't. Getting a job won't toughen you up. It will just make you weaker and more emotionally vulnerable and low on time to yourself in exchange for money. A job is for money. Boomers have been brainwashed into thinking it's supposed to be your identity or something. This feeling you have that life is awful and not worth it will just get worse. It doesn't matter if you get a job. This way you feel is just the way life is now because you're an adult and your brain is changing slowly into something less stary-eyed and youthful.
You should just get a job, work it for like 6 months to get roughly 4000 dollars, and then quit and hike the Appalachian trail in 2026 or something. You need to realize how ridiculous life is and how poorly adapted human pleasure is to society and technology and why you're so miserable. Because it's not due to your lack of a Walmart job. You've got to figure out your life, and if you're serious about a career, then do something serious like try to get into a trade school and make money climbing cell towers or something.
Like, my guy, you're a man. You have this super high athletic potential and source of infinite pleasure that is your body and you're not going to even look into it? And don't worry about a normal life, idiot. Look around you. Who the fuck is normal AND happy these days? The world is a gloomy mess of phone staring freaks and Walmart logos and politically polarizing ragebait, and nobody is in a good mood.