I'm stupid.
I went into work even though family member has symptoms of covid.
I get easily confused by rules, even obvious ones.
I blurted to colleague that sister was waiting for test result. They told boss who told me to go home.

I think my colleagues are unhappy with me.

I'm very sorry.

My sister had health anxiety and goes for lots of tests. I'm not sure she needed a test.

I'm sorry for being stupid. I don't hurt people deliberately

Edit, it's obvious when I was reminded of rules that I should isolate but information doesn't seem to sink in . I don't know what is wrong with me