Please, tell me that my thoughts are unreasonable?

Why don't you use a vacuum cleaner , or use a swifter. You just need one broom and you don't have to clean it all the time. If you are worried about the floors just mop it with a bleach/water solution, or get a swifter. Yes you can use the same mop in all areas of the house including the bathroom. Start wearing slipper instead of normal shoe in your house. The floors will stay cleaner that way. Just take small steps and talk with your therapist. Nothing bad is going to happen.