Help - feel lost in life

I'm 18 and living with my parents.
Always wanted to do art as a career but although most would say my art is good, it's not good enough to be earning me anywhere near a good wage.
I know someone who went to Goldsmiths and he got like zero work afterwards even though he was a great artist so he retrained as a nurse or smth.
I have given my life to drawing almost every day. I missed out on after-school activities and therefore friends just so I could do my art. Though I got good GCSE results, I got BBB at Alevel. Feel like a failure there because everyone knows I should have easily got A*A*A as I was a good student but unfortunately I just wasted time and was lazy.
Now I'm 18, living with my mum and stepdad and have got no hope for the future.
They're supporting me as long as I study art but I don't think I'm good enough anymore. Don't want to be an art teacher at a school so I have no art career options.
I miss being a kid, I messed up what should have been A*'s and now I've sacrificed all my time effort and parent's money to do art when I've failed to break through with that.
So I'm aware everyone goes through stuff like this at times of their lives but I really need some advice on what to do.
I refuse to be £50,000+ in debt to go to uni for some rubbish degree that gives me a rubbish job. It us only worth it for good jobs like law or engineering which I can't do.
Don't want to join the army and my parents will forever judge me if after everything I just give up and get a minimum wage job.
Thanks if you read all this, was good to rant abt it but yh I'm just in a bad place rn.

If you enjoy the process of producing art, give that your best shot. You're not going to starve.
The enjoyment and fulfilment that you get from producing art is reward enough and reason enough to throw yourself fully into it.
Periodically audit your life and ask "What else?" What else could you do with your time apart from what you're doing? If it's something better, do that.
Right now it seems that spending your time producing art is as good as anything you can do with your time.
I agree with you in not bothering with uni. As long as you have the drive and ambition to throw yourself into your art. And to throw yourself into something else, if that's what one of your audits suggests you should do.

Hi. Allow me to not agree with you. To achieve anything in this life. You have to experience so many situations. Listen to me. Take it easy and your life is getting you in the right direction. Possibly you have the feeling everyone knows what is doing. Is wrong. Enjoy your life and take it easy. You can't have everything in one go. There are so many to see. Best of luck.

What kind of art do you do? Have you considered digital art for computer games?

Thing is, that's not my style. My art style is more pretty scenery and stuff.Maybe I could sell my art on etsy. But it's honestly not really the in-thing rn sadly.

What about doing hand painted scenery on things like mugs, vases, bowls, etc?

I want to say that you should try everything you want in life so that in old age you realize that you have not lived your life in vain

I want to say that you should try everything you want in life so that in old age you realize that you have not lived your life in vain