Do you think its wrong of me to quit my job?

Basically I have been working as a Kitchen Porter, for 3 months so far. And I am a very hard worker, I do my job as good as possible.

But here is my issues.

- I cant save money. Because pay is low. 200£ a month on fuel.. and 85 a month on parking.

- My skin on my face regularley gets spots of white patches, due to handling bleach ever time.

- I get cut every single day, because of the speed I have to work at. Moving heavy trays, using steel scrubers. Scrubbing hard to reach places.

- the chefs sometimes make me clean up after their mess, e.g. if h coffee or cake on the floor, they ask me to clean up their spills.

Here is what I am scared of and very nervous about:

- I want to resign, but I am feeling scared of what my boss will say to me, how she will react. To my put of the blue request. I don't know if she will shout at me or roll her eyes at me.

Ps. I havent signed a job contract.