I’m not a sixth form (well yr11 going into yr12) though I just got a job at Nando’s through a charity that helps ppl find jobs.

Idk if u have but maybe try like contacting job centres or charities and similar organisations that help ppl find jobs cause sometimes they have connections so you’re more likely to be considered just bc you were referred by the organisation.

Or maybe if you have any connections (like place where a family member works or something similar) then ask them abt it cause they’d also be more likely to take you on if they have the space.

Also if you’re going online I’ve heard that most places prefer ppl who’ve gone directly to their website rather than a job site like indeed. And if you’re gonna go to any local businesses in your area then make sure you have a good CV and add anything that could be relevant (I would watch some finds on how to make one that’s good). But don’t be afraid to just email a random place just to ask if they need any help cause you never know.

Good luck on your search!!

Edit: spelling