A little update.
I'm moving out of this apartment. I have already found a new one.
I have found a well paid & interesting job, almost without looking for it.
I packed his things (most of them) and sent them to his family.
I am almost finished with my master's thesis. I was a bit disappointed because I had to ask for more time. The positive thing is that I managed to do it in a very difficult situation.
I went to counseling twice so far, I might go another time before going to see my family.
I hate packing.
I wanted to thank you all for your support and kind words.