It sounds like you're feeling a sense of responsibility or guilt about a situation involving repairs to your house and the use of silica products. It's important to remember that you are not solely responsible for the actions of others, especially when it comes to decisions that are made by contractors or workers. If you have concerns about the safety or health implications of using certain materials, it's a good idea to communicate those concerns with the professionals involved.
If you're feeling overwhelmed or anxious about this situation, it might be helpful to talk to someone about your feelings, whether that's a friend, family member, or a mental health professional. It's okay to seek out support when you're dealing with stress or guilt.