Ever Since I Was 8 (I'm 24) I Have Been

Ever since I was 8 (I'm 24) I have been struggling with this habit where I have to rewind certain scenes of a movie or segments of a song. I do understand what is being said but I have this urge to keep rewinding it, a part of my brain just goes with it and it is hard for me to stop it. I get so much anxiety and causing me to get depressed. Despite my fear of germs and parasites this thing is really taking up my life. I don't what it is nor what to do