(((Doggiedo!))))

I can relate to it. I'll have a similar rent increase in August and half my monthly income will be swallowed up in this way! Scary.
As I love my flat I only moved into this January, I will still try very hard to keep it for the next few months. I am in the lucky position that bills and Internet are included in this so it's just about manageable even if I haven't got much spending money then.
If you feel you can manage, I would try to keep your flat. Your flat is your home and it's very important. Of course, it can only be done without incurring too much debt. You need to weigh up the financial situation very carefully.
I overdraw my account each month, which isn't ideal either, but am keen to hang on to the flat for the moment although at the moment my job and with it my flat might not be completely safe.
A home can give one a certain amount of stability though.