I was saving my emergency funds on my bank, however since I have not touched it for a very long time because I had no emergency, I felt that I needed to make the money grow so I decided to invest it in bitcoin since I have not even touched it for a long time after investing it in bitcoin, a month later I had an emergency and at that time there was a dip in bitcoin that reduced my money and I had to borrow money to add to it so I can solve the emergency that came up.
Keep your emergency funds on your bank account don’t keep it on bitcoin.
This is one mistake most people make on a daily basis, you don't invest your emergency funds no matter what, it's strictly meant for emergencies, because if you invest with your emergency funds, and in that moment emergency struck, you will likely temper with your holdings or sell at a loss just to address that emergency situation at hand.
Additional, once you start investing with your emergency funds, you are now gambling with your Bitcoin holdings since you are putting your Bitcoin holdings in a vulnerable state.
Finally, holding your emergency funds only in a bank is not ideal, because if your bank lock you out when you need the cash badly to address an emergency situation, your investment is doomed, so I advice you spread your emergency funds across two different banks and keep some few cash at hand that can protect your bitcoin investment just in case, both of your banks lock you out the most important moments you need the cash.