Looking for a double room to rent

Hi my name is shannon I am 20 years old and currently a student at the university of brighton. I study psychology and criminology and I am looking for a double room to rent without references as I have been struggling to find a guarantor nor do I have one. I am looking to find a place that is quiet and if a sharehouse that it is reasonable respected with cleanliness and a quiet environment as that is my preference. Ideally I would prefer a double room that is not too expensive as my budget is only 600. I have been working at my job for over 3 years and enjoy it. Unfortunately I haven’t had family to help me out with looking for places as I don’t have strong connections with my family. Ideally I would prefer quiet and respectful flatmates who don’t mind me being in my room on my own as sometimes I need my own space to recharge and study. If you think you can help me out I really would appreciate it as I have been struggling the last few months trying to find a place to stay whilst accommodating my studies in brighton and I don’t want to be dropping my degree due to not finding a place as I want to pursue my degree.