Someone give me some advice ASAP!

I’m 17, soon to turn 18. And I haven’t got a job, sounds bad I know. But thinking about working makes me feel physically sick and I start to panic really bad. I really do want to work because I want to do fun things for the summer! I can’t talk to my mum or stepdad about it because they always tell me to ‘grow up’, the thing is, my mum is the exact same. Whenever I try to tell her, she starts shouting when she knows exactly how I feel because she suffers with anxiety and depression. I need some help, it’s really getting me down 😰😭