if u get some peppermint essential oil drops and put some water into a spray bottle with about 10 drops of the peppermint and a little dawn dish soap then spray house including garage and some outside too.....spiders hate the smell

Kill it with fire.

Call a God Damn EXTERMINATOR!

I was going to comment how you should ask the locals how they solve this issue, but it seems fml has you covered haha.

If you don't have a torn screen or something you may have a water leak. Spiders eat small bugs that eat even smaller bugs that eat mold that's there because there's water allowing it to grow. Look for water in the crawlspace or basement or attic.

YDI because you need to burn that house to the ground and live somewhere else. That kind of lifestyle is not acceptable.

This is honestly my worst nightmare

Big nope!

a mint scented candle or other products with mint might help. I used to always have a spider hiding somewhere in my room and mint worked for me.

That means you have a serious bug problem so look for other kinds of animals op