Clean tidy room with attached bathroom

I am from Bangladesh and now I am enrolled in Leuphana Universität Lüneburg. My course named Public economics,law and Politics. I am in my first semester right now.
Germany is totally a new country to me. I would to like to explore more and more .

Basically I need a single room at cheap cost (200-250 euro) . I am very tidy person and like me to maintain routine. I don’t like messy things at all. Also like to maintain cleanness everywhere.
Other than that I am so friendly and like to connect with new people . And always try to maintain good relationships with everyone. Because I know every person has different characteristics and we can learn a lot from them.
Furthermore my hobby is cooking and reading books.
I have a very clear vision what I want to do in my life. And that’s why I need a place to live where it feels like a home so that my mind won’t get distracted. Also it’s very hard to live without family so I want my living place beautifully surrounded by nature and nice people.