My condolences on losing a family member in such a tragic way
There have been many times I have gone IP just to keep myself safe and often I didn't have a med change. It was a safe place to be and I had great Doctors, Nurses, Mental health Tech's. I knew if I needed a person to talk to all I had to do was ask.
Depressions can be short or long. When it comes to Bipolar it will eventually spit you out the other side. Bipolar cycles that's the only you can bet money on.
Be kind and gentle with yourself