I use to get bees in my house all the time I sprayed the windows with bug spray and haven't seen any since.

There's an insect repellent candle that's meant for outdoors, but I use it inside lol my family thinks im crazy but I'm terrified of spiders, and it's worked so far

Also maybe you can put Sevin Dust around your house. It will help with them coming inside. I absolutely hate spiders, I'm so scared of them!! Lol

you can wipe the walls down with some insect repellent stuff. idk what its called I think its in a yellow bottle. I had the same problem and felt so nervous 😕