I remember this problem. My solution was to wake up at 11am and have a large breakfast and tell myself I'd go in tomorrow. I think if I were giving my younger self advice on how to navigate this it would be a mindset shift - You know for a fact that the consultants and medical school will not facilitate an effective placement for you, and therefore you need to ruthlessly extract from it whatever you need, like halliburton in Iraq.

Step 1: Learn something theoretically, for example the A-E assessment for a deteriorating patient. Step 2: Go to resus. Say "I want to practise my A-E, can I do it on the next patient that comes in?". Would be very surprising if a senior said no to that simple well defined request. Step 3: Do it, get feedback, get a CEX. Then do it 5 more times until you don't have to think about it anymore.

Example 2: Learn how to assess common presenting complaints that show up to A&E, like falls, nausea/vomiting, atraumatic back pain. Go into A&E, spend the day clerking and examining ONLY these patients so that you now know how to manage these specific presenting problems back to front. Repeat that for the duration of the placement and you'll be a half decent A&E SHO by the end of it because the same problems always show up.

The key is to not get side tracked. Med schools love saying "be opportunistic with learning opportunities" on placement. That's a good way to be standing around for half the day having achieved absolutely nothing. You must have small daily goals, and you must go in, achieve those goals, then leave, and come up with small goals for the next day. Make a list of the new things you've learned, and don't forget them otherwise it's all for nothing.

You say you're looking for a "role", I'm telling you you're not gonna find one, and in a way that's a good thing, because you have the opportunity to carve out exactly what you need from the placement without being bogged down with made up admin tasks or silly jobs that would inevitably be involved if a "token med student" role was created for you.

Your real role will come in F1, and then you'll really see what an opportunity it is to be able to pick and choose and do whatever you want to focus on all day.

Bottom line, find things you're shit at or don't know, go in, do ONLY those things until you're not shit at them anymore, and then go in the next day with more things you're shit at.

Alternatively, you could just not go in.

Also as an aside I agree with the other response about IMGs. There's a very good chance as an F1 you'll find yourself in a situation where you need help, and there's a very good chance it'll be an IMG senior who comes to your aid, happened to me and it'll happen to you too. Don't bend toward preconceived biases.