Oh my god..I got the ssd issue alert, and went to the apple store yesterday. And he told me I need to back up all my files first, and also he told me that he has to order ssd and it will take up to 10 days. He said he will call me when it's ready.
I did not back up my files because I don't own any external hard drive, and I don't need it for anything, so I did not buy it. A lot of my documents are in Google Drive, but my songs, all the apps are in the storage of my mba itself. \
So the apple genius told me I can keep my macbook until they call me in, and he will replace the ssd for me. I said okay fine, and came back home after wasting my time..
Today, I was using my macbook fine in the morning and afternoon, then just now, after going out and coming back, when I opened up my macbook, it suddenly froze, and as I was waiting for it to come back, it rebooted and now it's showing this image attached...I don't know what to do. It's Sunday, and all the apple store around here are closed. I forced reboot, and it's still the same screen. I'm very upset and disappointed at the same time..

I have tons of work due next week, and this thing came up, and a lot of my time is being wasted.
Anyway, sorry about the rant, and my questions are..
1. Is there anything I can do to recover this on my own, without taking risks?
2. Will apple replace only my ssd, like they told me, or replace my macbook with a new one?
Thanks for your help..