Is it possible to postpone 3 days before the wedding?

This might be a stupid question, but I decide to keep my date for this year despite the pandemic and everything keeps going wrong and it just feels wrong to continue with it. My hair stylist has covid. We lost half our guest list. 3 people just this week told me they can no longer come, and my maid of honor just called me to tell me she is sick and can’t come. My mental health from this pandemic and losing family members this year is worse than it’s ever been. I’ve cried about it the whole week and things just keep getting worse and worse and the thought of having to look back on my wedding day and remember all of this honestly makes me sick. I don’t know what to do anymore. I’d appreciate any advice anyone can give me.