Hi Elli
2 months ago I was in a very similar boat. The break-up came out of the blue, 3 years together, although really I knew things hadn't been working for a while - it was still hard to accept that he didn't want to try anymore. I found myself without any family in the country and all my friends in London were borrowed from him, plus i had to move out.
I went back home to my parents for a week, took some time off work, let things sink in and figure out what I was going to do. In lieu of any really girlfriends to chat to I downloaded an e-book called, "its called a break-up because its broken" (Behrendt) - i know its sounds cheesy, and ive never successfully read a self-help book before, but I was desperate and plus I had a lot of time on my hands. I found it helped me through the various stages, plus it was quite funny too. I haven't finished reading it yet, but I'm still dipping in whenever my head gets a bit messy.
I also went to my GP who signed me off work - one less thing to worry about was perfect. I went back a few weeks later when I found i actually benefitted from the routine.
Its important to find somewhere to get your support from. And I would also recommend running, just getting out of the house with a purpose is important.
Thinking of you, (hugs)