How do you get over a breakup when you feel so demotivated?

My partner broke up with me and I can’t get over him. Because I can’t afford our flat anymore I have to move out, but I can’t even face looking around for somewhere right now. And now I’ve just found out there will be MAJOR changes at work. I feel so lonely, exhausted and keep getting ill from being so stressed.

All the advice to move on from a painful breakup involves taking up new hobbies etc, but this whole thing has pushed me into serious depression. I have had depression most of my life, but had it under control until this all happened.

How do you find the strength to get motivated and get back out there when all you want to do is cry?