I’m 19 and Here’s my experience so far

While in highschool I wasn’t paid to do this but I mentored kids for twos years.
I was paid to be a stage manger plus tech/audio assistant and even make some art for the school plays and events for a year
After that I worked at a broadcasting studio for five months (it was a short job)
Then I worked at McDonalds for two months but I had to leave due to the overwhelming smell of the food making me sick which really surprised me because I use to really like McDonalds.

So yeah since then I haven’t been able to land any jobs at all. It’s been a year. I’ve applied to fast food places and other restaurants, retail, delis, laundromat, supermarkets, baby sitting, assistant teachers, persisting, retail, delis,
and the list keeps going. I’ve even applied to just random jobs just out of desperation, but nothing. I always get the same kind of emails “you’re not qualified for this position” or nothing at all. I make efforts to show I’m interested,. I call and email, I visit these places and still nothing. I ask neighbors if they need any help but they mostly don’t and I’ve tried doing art commissions which also get absolutely no where because so many people try scamming me.
I’m desperate, I’m tired of living off my grandmothers money while she’s struggling.. but I don’t know what to do. I see people my age living successfully making so much money having their lives figured out and I thought I would too but I don’t.