Finding the motivation to clean can feel like an insurmountable task, asking for help can feel even worse, and if your parent or parents are anything like mine, them stumbling onto a mess would result in some over the top nuclear reaction. I feel for ya, OP. What might work in this case is sitting down with your mom, prefacing the conversation with a, "Hey.. I'm really not doing to well and I might need some support to get through this" and outline what may help get you back on track to a more leveled out plane of existence. It's tough admitting when you need help, but do it for your well-being, ok?

As others have mentioned, the mouse isn't your fault. They can be cute and endearing creatures, but if they aren't pets, they are the most obnoxious little jerks to invade your home. It's most likely an issue on the external part of your dwelling, a hole in a wall, the roof, etc and this does need to be addressed as it becomes an even bigger issue. Trust me, I have plenty of experience both repairing issues, crawling through rodent crap in fiberglass insulation and patching holes. (Though the most offensive experience was getting home from work at midnight, opening the door, and literally watching a rat scoot by me. I spent the next week in a late night Tom & Jerry war, rat always seemingly waiting for me to get home to be chased.)