Is inability to be motivated a symptom of depression?

I've already been diagnosed with depression I'm just looking for a reason as to why I can't get/stay motivated. 

I have a shitty home life and want to move out and do a bunch of other stuff. And like I can see the rainbow on the other side, I can see how things are going to be better once I get a place of my own, but I just can't use it to motivate myself??

&amp;#x200B;

Would this be because of depression and does anyone have any ideas on how to fix?