Shall I quit my job?

I am 17, and I work in a chip shop. I absolutely hate it. I am underworked and underplayed, my boss is horrible, and I have anxiety, depression and serious self confidence issues which all make it really hard for me to work.

I need the money to pay for bus fares to and from college and to pay everyday expenses. I am having a very hard time finding another job but I have enough money to be comfortably unemployed for a while, and my parents have offered to support me if I quit.

If I quit, I am worried that I won’t be able to find another job, but I don’t know how much more I can take of it, I am so unhappy.