I've been struggling to find a job, I mean, I'm 19 now, I drop out of art school, my parents don't want me in the house, but I haven't found anything, I went to four interviews this month, but still nothing. I don't have experience and it's difficult when no one gives you the opportunity. I worked as a sugar baby for a short while but I didn't feel like having sex with men so I left my only income. I still have the money but it's not enough and all of this have just happened this year and I feel like I would never get a job.
My dream is being a flight assistant. But I still think it would be difficult for me to fit the requirements even if I'm healthy, tall, and easy to the eye.
I want to read your experiences, your stories, I want to hear your advice and all. please.

I would just keep trying. I did like 30 job applications and only one person called me to give me a chance. With that job, I was finally able to show people i have experience. Keep looking. It can be pretty hard and discouraging but keep trying.

I always tell people the same thing. Always try to drop off your applications in person, and always ask if you can give it directly to the hiring manager. This way they can put a face to the name, and it shows your eagerness to work.

Precious advice is good. Also don't be afraid of cold-emailing. Even if a place isn't hiring, go in and see if they need anybody, they'll get the manager, and then you basically get an interview on the spot (just don't go during the businesses peak hours). I've seen many people get hired this way, it's probably the most effective approach.
Also, try to see if there's anything you could improve on in your interview. Can you reflect on your life experiences better? Do you really know your strengths and weaknesses? How to improve them? How will working that job help you achieve your goal in life?
Also, keep trying! You're going to get a lot of rejection for a while. That's par for the course. Eventually you'll land something, just keep working hard.

(Sidenote: try to patch up your relationship with your parents as soon and best as possible. Life will only get worse the longer you leave that relationship broken.)