get more sleep. It seems simple, but it isn't.

I understand this perfectly, I also find it difficult to sleep mostly during the day time.

But for the sake of your health, your loved ones and people that are looking up to you, I think you should please make out time for sleep, rest and take very good care of yourself.

Sorry about your loss. May the Lord continue to comfort and strengthen you and perfect everything that concerns you. It's well with you.