After getting some help I can finally live in my room. Thanks!
My sister asked me what I am doing in my free time. One of the things I do is cooking. My female flatmate is a good cook and I hope she will teach me a lot of dishes. But I am totally satisfied with eating pasta every day. :)
Besides I forbade myself to buy new clothes (maybe except socks) at least till november. Eventually I am going to wear every piece of clothing I took with me. This decision feels great.