Looking for a nice flat for longer term stay

My name is Craig Mitchell, I am a 28 years old guy currently working at a hydroponics company in the city. I've been living in Berlin for 2 years and looking for a new flat with a bigger room than what I have now and preferably with a balcony. I'm into science stuff, woodworking, marble sculpting, playing music and generally enjoying my time : ) I'm not a very stressful person, easy going and open minded, tidy, with a positive outlook. My job requires me to be out of the city usually 2 days of the week but I love getting home to a warm, friendly environment. Looking for a longer term place, ideally, I would like to move at beginning of October but I am flexible.