Which documents better to provide for my uk visitor visa?

I am currently a high school student and also part time employed in my country. And I would like to apply for an UK standard visitor visa. Should I provide verifications for both (school and work) or is it enough if I provide only a school verification that states that I havent finished my high school yet. To get a verification from my employee is not easy in my case that is why I am asking. But I can for sure provide bank statements that contains my salary every month and also a document from government that verifies that my employee has paid all social and health contributions. Would that be enough?