Hugs Molly;

Just do the best you can, don't stress out over what you can't control, and people screaming and being jerks is away for them to release there pent up stress and too bad they scream at the people who don't deserve it. Just try to find something you can listen too that will help drown out the noise and don't take it personally, they are the ones with the problem not you and they have to find away to get over they feelings better.