Hey Michael,
I live and work in Gibraltar for 2 years now. I just moved to a house, 8 minutes walk to Gibraltar. It has 4 bedrooms, a roof terrace and a private garage, I live alone at the moment so 3 bedrooms are empty. You are 23, I am 24 so we would get along very well I suppose
You can stay at my place for a month or even longer, I love to have guests over 
Let me know if you are interested.
EDIT: You can send me a message by clicking on my Profile Picture and then on the right "Send a message".