Quit EB/BB before first year of analyst program is up?

Hi,

I am seeking advice on possible exits in my situation.
I am at a BB/EB in London, and despise the work from the bottom of my heart. The team I work with is horrible, and I haven't been able to sleep properly since last summer due to stress and constant bombarding of email requests from seniors.

I am not cut out for this, my relationship is suffering, my health is going down, and am starting to have panic attacks (which I have never had), feeling the need to just run out and never come back. I am aware that sticking it out for a year is the absolute minimum people recommend, but I do not see myself making it another month without having a complete crash.

I am looking to move back to my home country, and am starting to reach out to family offices and small cap PE funds, as these are places I would ideally want to work in after IB.

My question is,
Should I quit and move home in able to interview for places?
If I should stick around at my current sweatshop, how the hell do I interview in another country? I barely had a few days off over Christmas. Don't see myself getting any holidays anytime soon.

Thanks, and sorry about poor structure. Just wrote this out after another panic attack.