It sounds like your dad died recently. Do the people at work know this?
Some employers will give time off or a reduced workload in situations like this and coworkers tend to be supportive when they know a peer has had a loss.

All you can do is one thing at a time. Pick one thing for one day and another for the next.

Most important, rest, and eat well (as well as you can with a tooth problem).
Take care of yourself first, the other chores you have to contend with like getting your dad's possessions or dealing with service people coming to your home can wait. Reschedule if necessary.

Hugs to you.